How to fix scars from nair?

Challenging . . .: It is unlikely that nair depilatory cream caused significant scarring alone. If this is in the groin or armpit area the scarring may represent hidradenitis. This is a hard thing to treat, but will likely improve with therapy. Be sure to see either a gynecologist or dermatologist for treatment.

See your doctor: Scars mature and can continue to improve for up to a year. They are sun-sensitive and may become hyperpigmented with sun exposure. The best way to treat a scar depends on the scar. Options include silicone gel, silicone sheeting, use of filler (for spot or crater-like scars), laser therapy, hydroquinone, dermabrasion, or kenalog (triamcinolone) injection, or surgical scar revision. See your plastic surgeon.