Photodynamic Therapy (PDT) for Actinic Keratosis

An FDA-approved treatment for actinic keratosis. It destroys precancerous lesions across the entire field of sun damage.

Board-certified dermatologist Dr. Craig Singer treats actinic keratosis and other precancerous sun damage at his Bingham Farms practice.

Quick facts

Treats

Actinic keratosis (precancer)
Status
FDA-approved
How it works
Levulan + blue light
Sessions
Usually 2 sessions, 4–6 weeks apart
Healing
Scabs heal by ~day 14
Sun
Avoid sun 48h, stay indoors

What are Actinic Keratosis?

Actinic keratosis are rough scaly patches on the skin caused by chronic sun exposure. They are more common in fair skin/blue-eyed people and are precancerous. If left untreated, actinic keratosis may progress to squamous cell skin cancer. Therefore, early treatment of actinic keratosis will reduce the risk of developing skin cancer. Treatments for Actinic Keratosis include: Fluorouracil, Imiquimod, Picato, Diclofenac, Liquid nitrogen, and PDT.

What is Photodynamic Therapy (PDT)?

PDT is an FDA approved treatment for actinic keratosis. It works through the topical application of a photo sensitizing chemical (Levulan) which is then stimulated by a blue wavelength of light. The chemical reaction subsequently destroys actinic keratosis (i.e. precancerous lesions).

How PDT works

1

Apply Levulan

A photosensitizing chemical (Levulan) is applied to the treatment area.

2

Incubate

It absorbs into the sun-damaged cells over one to two hours.

3

Apply Levulan

A blue wavelength of light activates it, destroying the precancerous lesions.

Craig Singer MD: Skin Care Specialist in Metro Detroit

Recovery snapshot

What the next two weeks usually look like

Patients should plan for visible redness, strict light avoidance, and steady healing. The reaction can look intense, but it is part of the treatment response.

Day 0–2

Bright redness, burning sensation, swelling, and heightened sensitivity to sunlight or bright indoor light.

Day 3

Discomfort usually begins to settle as the acute reaction cools down.

Day 7–14

Crusting, peeling, and scabs typically continue to clear.

Month 1

Skin often feels smoother as actinic keratoses are reduced across the treated field.
Photodynamic Therapy (PDT) FAQs
Clear answers for the procedure day, recovery window, sun precautions, and who should avoid treatment.
  1. PDT is applied to the entire field of sun damage, thereby destroying actinic keratosis that are both visible and microscopic.
  2. The exact areas to be treated are applied by the physician to ensure the accuracy of the treatment.
  3. Scientific studies have shown that people who have undergone PDT have improved skin texture and tone, as well as an improvement in their overall appearance.
  4. In addition, the reaction that develops from PDT often subsides within two weeks whereas the reaction from Fluorouracil or Imiquimod may last longer than four to six weeks.
  5. You will not need to fill a prescription.
  6. No scarring from PDT has been reported to date.
  7. Finally, most Medicare plans cover the cost of PDT through a medical benefit. 
  1. We will lead you to our procedure room and informed consent will be obtained.
  2. We will cleanse your face with alcohol/acetone.
  3. Levulan (a photosensitizing chemical) will be applied to the treatment area.
  4. The Levulan will need to incubate for one to two hours prior to illumination with light. You are permitted to leave the office during the incubation, but you are not permitted to wash your face during this time.

In general, lesions on the face need to incubate for 60 minutes, whereas lesions on the scalp need to incubate for 60 to 120 minutes depending on the thickness of the lesions. In addition, the scalp will be occluded with Saran wrap after application of Levulan to enhance penetration.

On occasion, loose scale or crust will be gently removed from the skin surface.

  1. Once incubation is complete, you will be positioned underneath the U blue light (for 17 minutes) at which time the photodynamic reaction occurs.
  2. It is normal to experience a burning sensation while you are exposed to the light. We will hand you a fan to help cool the area during the treatment. But if the reaction is too intense, we can temporarily pause the treatment. Less than 3% of people discontinue treatment due to severe burning and stinging.
  1. Immediately after the procedure, your skin will look bright red and you may experience a burning sensation.
  2. Over the next 48 hours, it may look like you had a sunburn with swelling.
  3. Areas around the eyes and lips may look more extreme.
  4. Some people experience a more intense reaction with crusting and oozing, followed by skin peeling.
  5. In general, the more intense the reaction, the better the result.
  6. Discomfort usually subsides by day 3.
  7. All scabs will typically heal by day 14.
  8. Over the next couple weeks, you may see some discoloration (lighter or darker areas) which will spontaneously resolve.
  9. Your skin should feel smoother a month after treatment indicating a reduction in actinic keratosis.

Yes. You will be overly sensitive in the sun for 48 hours. It is best to remain indoors. But if you go outside, you must wear a wide brimmed hat and a zinc-based sunscreen (such as Neutrogena Pure and Free baby). Also, try not sit near a window in your home or under a lamp, as this light may produce more burning sensation too. 

  1. Apply ice packs or washcloth with cold water as needed for discomfort.
  2. Use a gentle facial skin cleanser such as Dove sensitive skin soap or Cetaphil.
  3. Use Cerave cream or Cetaphil cream (not lotion) to moisturize OR Vaseline ointment/Aquafor ointment if crusting develops.
  4. Use OTC 1% hydrocortisone ointment twice daily if you are irritated.

Call us at (248) 792-3785 or e-mail at TopDoc@SingerDerm.com if you have questions or concerns.

Most patients will require 2 sessions spaced 4-6 weeks apart.

Those with the following medical conditions should avoid PDT:

  1. History of porphyria
  2. Blood clotting defects
  3. Pregnancy or Nursing
  4. Inability to avoid sun exposure, bright lights for 2 days

Photodynamic therapy across metro Detroit

Dr. Singer performs blue-light photodynamic therapy (PDT) for actinic keratosis and sun-damaged skin at his Bingham Farms office, convenient to patients across Oakland County and metro Detroit. PDT treats the full field of sun damage, including precancers that are not yet visible.

Patient testimonials

4.9

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4.9ZocDoc star 1ZocDoc star 2ZocDoc star 3ZocDoc star 4ZocDoc star 5
Top Rated Service
Verified by Trustindex
Top Rated Service
  • 4.9 Excellent rating Last 12 months
  • New reviews collected regularly Recent review activity detected
  • Leading Service Google Maps rating and review data
  • Verified by Trustindex Based on real customer reviews Learn more
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M Leone profile picture
M Leone
1 days ago
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Very precise, knowledgeable, and professional. Dr. Singer The best. The staff is also fantastic.
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Raina Sinclair profile picture
Raina Sinclair
5 days ago
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Absolutely loved that I had a Doctor that listened to my concerns regarding my hair loss. I’m looking forward to the treatment regimen and growing my hair back.
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Melissa Woosley
7 days ago
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⭐⭐⭐⭐⭐ Exceptional Experience with Dr. Craig Singer! I couldn’t be happier with my experience with Dr. Craig Singer. I had a comprehensive acne scar revision procedure, and I’m already seeing a noticeable improvement in my skin. My scars are looking shallower, and my skin is becoming smoother. I understand that results take time as collagen continues to develop, and I’m excited to see how much more improvement I’ll experience as my skin continues to heal. Dr. Singer has been attentive and thorough throughout the process. I especially appreciate that he takes the time to review my healing progress and make sure everything is going well. His knowledge, experience, and attention to detail have helped me feel confident in my decision to move forward with this procedure. Acne scarring has affected my confidence for a long time, so seeing real improvement means so much to me. I’m grateful to Dr. Singer for helping me take this step toward feeling better about my skin. I highly recommend Dr. Craig Singer to anyone considering acne scar treatment. I’m very happy with my experience so far and look forward to continuing my journey with him! Five stars all the way! ⭐⭐⭐⭐⭐
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cheryl solomon profile picture
cheryl solomon
7 days ago
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Dr Singer and his staff are the best. They listen to all the concerns you have and they answer all of your questions . From the time you walk in until the time you leave, the service is impeccable
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Janet Levine
11 days ago
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incredibly kind, efficient office. special care for older people and so on top of everything and have solved problems nobody has solved for 20 years. Rhianna is an incredible wound care specialist. 25 stars to all
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Pamela Blackwell-Nwonye
11 days ago
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Dr Singer's office staff made me comfortable from the second I walked in. Dr. Singer himself is so very nice and has the knowledge for the treatment he gives. His treatment has totally improved my skin and I cannot thank him enough. He must be doing something right because most of the staff are the same people I have been dealing with all along. This is an office that gets to know YOU, and for that I am grateful.
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Pam Voss-Page
12 days ago
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Shelley is sensitive to my needs and makes sure that I am comfortable. This is my second round of treatments with Shelley. I'm very grateful for her expertise and gentle way. Thank you!
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Sarah Jacobs profile picture
Sarah Jacobs
13 days ago
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Absolutely amazing care. Dr. Singer has treated my family for years and been 100% accurate on diagnosis, including things other specialists had missed. For the past year he and his team have been treating my 86 year old mom with the most amazing care I’ve ever seen. Wound care team is top notch. Can’t say enough about the whole team.
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Vladimir Goldshteyn
14 days ago
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One word-Excellent!
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Melanie King Jackson profile picture
Melanie King Jackson
15 days ago
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Dr Singer and assistant were professional, attentive, & knowledgeable. All of which made me feel at ease while I was there.
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Tony Edmonds
18 days ago
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Dr Singer is very professional. I highly recommend!
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Pat Banks profile picture
Pat Banks
19 days ago
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Very professional, patient, kind, and thorough! Dr. Singer explains everything in layman's terms so that his patients understand everything.
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Troy Manni
19 days ago
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Had a great experience here. Veronica was a wonderful provider and did an amazing job explaining everything to me through out my appointment. I will definitely be back to see her.
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Sarah Kozak-Leonard
20 days ago
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I have struggled with acne since I was 11 years old — I'd seen so many derms and tried just about everything with little to no success. After my previous derm told me my only option was accutane, I scheduled with Dr. Singer as a last-ditch effort to see if that was truly my last option. Dr. Singer was so kind and listened to my concerns, and best of all, was able to provide me with an alternative that WORKED!! My skin is clearer than I ever dreamed it could be! I am forever grateful to FINALLY feel comfortable and confident in my skin! He and his staff genuinely changed my life! Thank you, Dr. Singer!! And thank you to the office staff who are always kind and courteous!
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Sandra S.
22 days ago
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Best dermatologist in the area. Super professional staff and personable physician.
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michael lockman
23 days ago
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On time for appointments. Dr. Singer has a great "bedside" manner. And oh yes, his medical advice is spot on [pun intended].
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M Mountain
25 days ago
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FABULOUS DOCTOR!! 🎉🇺🇸🤗. and support staff too! Never a hesitation to visit!
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Paul Borden
26 days ago
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Dr Singers whole teem really got me through a rough time and continue to work for me
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Harriet Cooper profile picture
Harriet Cooper
27 days ago
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Excellent doctor, staff, support staff. I have known this team for 15 years and recommend without reservation to everyone I know. Dr Singer takes every patient issue, big or small seriously and takes needed time w patients. Office is also excellent at scheduling. Come on time and you will b seen on time. Dr Singer and staff also do very well w individuals w special needs. It’s unusual to find all levels of staff to b competent welcoming and follow through on medical issues and communications. Harriet Cooper
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Nash Nash profile picture
Nash Nash
32 days ago
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I’m very happy with the service, And Veronica was very nice and helpful she listened to my concerns I appreciate that.
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Cheryl Courage
33 days ago
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I wouldn’t take my child to any other dermatologist! This place is the best.
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Thomas M. profile picture
Thomas M.
68 days ago
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I've been going to Dr. Singer for a long while now. He is very talented and does a great job on my annual skin screenings and takes action when something is suspicious on my skin, so I always feed confident when I leave that I'm in good hands. I would recommend him to anyone that is looking for a very good doctor of dermatology.
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michael O. profile picture
michael O.
81 days ago
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My PA Veronica was knowledgeable and a great listener. She was empathatic to my concerns and helped put me at ease. The entire staff was kind and knowledgeable.
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Ernst F.
90 days ago
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Great experience! Dr. Singer is very professional, attentive, knowledgeable and kind. Very happy with the visit. Will recommend to friend and family
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Debbie N.
119 days ago
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Dr Singer is very thorough, explaining the need to remove a spot on my chest. He handled the procedure without pain. And gave me samples for dry scalp. I come back from Fl to get my annual check. Office staff is professional and friendly.
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Zocdoc user
121 days ago
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Excellent, fast, and listened to my whole history and addressed all my concerns and more.
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Melissa W. profile picture
Melissa W.
126 days ago
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Highly recommend Dr. Singer, very knowledgeable and explained everything to me!
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Eric P. profile picture
Eric P.
142 days ago
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Very thorough and listened to me to understand my issues. I’m happy I went to their office to get my problems evaluated and addressed.
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Lorene G. profile picture
Lorene G.
155 days ago
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Dr Singer takes his time listening to his patients. I was given a thorough full body exam. Feeling comfortable with a doctor is very important to me. I would highly recommend Dr. Singer.
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Zocdoc user
161 days ago
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Dr Singer is grade A class, he gave me a break on the bill as I didn't have quite enough money to cover it. I recommend him and would go visit him for any skin issue. His staff were also friendly and efficient.
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Angela P. profile picture
Angela P.
184 days ago
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My appointment was timely. Doctor Singer was professional and courteous throughout the exam. He explained his findings and communicated what my follow up plan should be.
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Christa B. profile picture
Christa B.
193 days ago
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Dr. Singer possesses an excellent bedside manner and never rushes you during your appointment.
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Belle K. profile picture
Belle K.
200 days ago
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5 Stars for Autumn at the front desk
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Luke P. profile picture
Luke P.
209 days ago
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Dr. Singer and his staff are amazing!!!
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Brenda T.
247 days ago
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There was no wait time once you checked in.
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Glenn G.
271 days ago
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Great, caring and thorough doctor. Kind, personable and, most importantly, knows his field.
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Zocdoc user
282 days ago
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Absolutely the best care possible. Dr. Singer and his staff, especially Tina, are amazing.
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Anthony L. profile picture
Anthony L.
288 days ago
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Dr. singer and his team are phenomenal! This is the best Dermatologist I have ever been to. I live over an hour away from his office, but I will make the long drive every time because of how great Dr. Singer and his team are. I would recommend Dr. singer to everyone if they are in need for a great Dermatologist.
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Damian R.
299 days ago
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I took my son to see Dr. Craig Singer. He was very professional and explained everything very clear. The office was very clean and the staff was amazing.
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Zocdoc user
325 days ago
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I like his approach of not immediately recommending an intrusive procedure, will see him again in 6 months for progress report on skin care regime recommended by him

About Dr. Craig Singer MD Dermatology

Located in Bingham Farms, Craig Singer MD Dermatology was founded in 2017 by Dr. Craig Singer, a board-certified dermatologist.

We specialize in medical, surgical and cosmetic dermatology, treating patients of all ages, newborn through elderly. We have expertise in a wide variety of skin conditions including eczema, acne, and warts as well as complicated dermatological issues that include hair loss and autoimmune disease. In addition, we are highly skilled in the evaluation of moles and skin cancer.

For more than 20 years, Dr. Craig Singer has helped thousands of patients look and feel their best.

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20+ Years

Trusted by Thousands

Board-Certified

Dermatologist & Pediatrician

Craig Singer MD: Skin Care Specialist in Metro Detroit
american board of physician specialists
Craig Singer MD: Skin Care Specialist in Metro Detroit
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