Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain scars and spots on face from burning can take a long time to resolve and it is difficult to resolve them completely with topical treatment.. You should consult a Dermatologist and get evaluated and a clinical evaluation can help in diagnosis and treatment can be planned accordingly.. You can be advised to wash your face with Salicylic acid and Glycolic acid containing facewash.. You can also apply creams containing Kojic acid, glycolic acid and arbutin.. You can be advised to apply Vitamin E gel.. Silicone gel can help in reducing scars.. Exfoliate your sin twice a week and also limit sun exposure.. There are certain techniques to reduce the scars like Microneedling,excision with elevation, Microdermabrasion, dermal rollers etc, and will depend upon the type of scars.. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.