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Photodynamic therapy for the skin
photodynamic therapy · skin PDT · light treatment · PDT · photodynamic treatment
A special cream is applied to your skin that makes the changed cells sensitive to light. Then the area is lit with a lamp, and the changed cells are destroyed.
For some precancerous skin changes, surface skin tumors, and sometimes acne - as decided by the doctor.
⏱ Duration: the cream works for usually 1 to 3 hours, the lighting takes 10 to 20 minutes; healing takes 1 to 2 weeks
Be sure to tell your doctor
How to prepare
- Skin. Do not sunbathe for a few days before the procedure. Do not use scrubs or irritating products.
- Trip home. After the procedure your skin must be hidden from light - bring a hat, scarf and dark glasses.
- Time. With the waiting, the procedure takes several hours - ask the clinic.
What to bring
- A hat, scarf and dark glasses
- Sunscreen
- A list of your medicines
- Something to read while you wait
How it goes
- Your skin is cleaned and sometimes crusts are lightly removed
- The special cream is applied
- You wait with a dressing on while the cream soaks in
- The cream is washed off and your eyes are covered with protective goggles
- The area is lit with a lamp for several minutes
- The skin is cooled and a soothing product is applied
What you'll feel
- During lighting - burning and tingling, which can be strong
- The doctor can pause and cool your skin with air
Afterwards
- For usually 1 to 2 days keep your skin protected from light, even from a bright lamp
- Redness, swelling and crusts usually go away in 1 to 2 weeks
- Do not pick off the crusts
- After that use sunscreen every day
Contact a doctor straight away if
- Blisters, pus, severe pain or fever - see a doctor
- Severe swelling around the eyes - see a doctor
Common questions
Does it hurt?
It burns during the lighting. Cooling and pauses usually help. Tell your doctor if it is hard to bear.
How many sessions do I need?
Often one or two. The doctor will tell you the exact number.