Stop using harsh scrubs, bleaching creams, lemon, baking soda, or peroxide on the area
Reduce friction from tight clothing, shaving, waxing, and frequent rubbing
Use a gentle, fragrance-free cleanser and lukewarm water
Moisturize with a bland, fragrance-free product if the skin is dry or irritated
Wear loose, breathable cotton underwear
Treat ingrown hairs and irritation carefully to prevent darkening
Use sunscreen on any exposed nearby skin to prevent further darkening
Consider over-the-counter brightening ingredients like niacinamide, azelaic acid, or licorice extract on external skin only
Patch test any new product before regular use
See a dermatologist for safe options like prescription creams, chemical peels, or laser treatment
Get checked if the darkening is sudden, thick, itchy, painful, or spreading