Hyperpigmentation is a common side effect of hair removing creams and folliculitis of shaving/ waxing. For hyperpigmentation one could use products containing ingredients like tretinoin, hydroxyquinone, arbutin, kojic acid, azelaic acid, alpha hydroxyl acids, niacinamide etc. However, these should be used only after consultation with a dermatologist and with caution in the pubic area, with extra care not to touch anywhere beyond the skin. For folliculitis you could use OTC ointments containing benzoyl peroxide/ clindamycin.
Hope this helps.
thanku so much doctor.u really helped me.God bless you