I used dettol on my face over one pimple (which has been there for 34 months.). My skin burned over there. Burned skin is no more there. But one black mark left there. and its being darker and darker day by day. What should I do?
The dark mark, likely a post-inflammatory hyperpigmentation (PIH) scar, can be treated with topical creams or serums containing ingredients like hydroquinone, kojic acid, or niacinamide; consult a dermatologist for a proper evaluation and personalized advice, and in the meantime, use sunscreen with at least SPF 30 daily and avoid picking or scratching the area to prevent further darkening.