Are There Long Term Consequences to Indirect Light Exposure After Pdt?

I did not follow the intructions from Dr. office very well after PDT and spent about an hour and a half in my car later that day to run an errand. Was careful to keep my head out of direct sunlight, but definately felt burning sensation in skin where chemical was applied and serverely red with a lot of skin peeling 4 days after procedure. Am wondering if I did any permanent damage or just will have a longer recovery from the procedure.

Doctor Answers (1)

UV Exposure After PDT

+1

UVA, which can penetrate through windows, can further activate the photosensitizer applied during PDT and exacerbate your reaction.  Patients who have done this typically prolong their recovery time, but side effects tend to be temporary.  It is important to not peel or pick as this can increase the risk of adverse effects. Depending on your skin color, if darker and prone to tan, the prolonged redness caused by doing this can increase ones risk for post-inflammatory hyperpigmentation, but this too typically resolves.


San Diego Dermatologic Surgeon
5.0 out of 5 stars 30 reviews

These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.