When should I see a doctor for a first-degree burn?

This is why I love this forum! You get answers from experienced doctors too FOC somemore! Now on a serious note, Differin is quite effective in many scenarios. It can help reduce oiliness, comedones and even maintain or control syringomas post laser. It does lead to the possible purge during usage. I have seen dermatologists start Differin AND Retin-A before (although this i still haven’t quite understood why so). You should do the following Control the amount used, and generally at night. You can start alternate nights first to get used to the dryness or peeling first.

Hi It looks like you had quite a severe burn over your left leg that has recovered with a large patch of post inflammatory hyperpigmentation. I do not see any scarring over the patch which is a good thing. It looks like the hydroquinone and Arbutin cream has not worked well. I am not sure of the concentration of the products you are using but in my opinion if you are not contemplating laser treatment you can consider the following: Chemical Peeling — there are various types of peeling available to lighten pigmentation.