Hello doctor,I had erythema multiforme because of drug allergy and currently left with post inflammatory hyperpigmentation. How long will it last and how and what should I do or apply to let the pigments fade? I have my liver, biopsy test, and I need someone to explain the results.
Hi, Welcome to Chat Doctor forum. I have gone through the pictures (attachment removed to protect patient identity). Your lesions are not only hyperpigmented (which shows the healing phase) but they are still erythematous (which shows the active phase).  So, right now you should not worry about the pigment of these lesions. It will take some time like three months to recover. Even then some pigmentation may remain. But you should keep yourself relaxed as you had a serious condition and that is good you are in the safe phase now. I did not receive your liver biopsy report. Only CBC (complete blood count) was there. For more information consult a dermatologist online 