What is the treatment for facial marks after chemical burn with salicylic acid to make those marks fade away?

Ans: Bad burns. Hopefully you rinsed well at the time of the burn and used silvadene (silver sulfadiazine). Now you can continue to use antibiotic ointment. This may help over time.

UseYourFeetToTreat: The treatment is to get to a cosmetic dermatologist or plastic surgeon,who will decide what to do based upon numerous factors, like age or scars,skin type,type of scarring patterns, how deep,how raised,any "smearing"or altered skin lines,location relative to important landmarks like lip margins,cheek folds, eyelids etc etc etc etc--There is no non-prescription product I am aware of that helps much