hello sir, thanks for your question i think you have fungal infection.it is more common when perspiration is more. keep your groin area clean and dry by drying off thoroughly after bathing and putting on dry clothing right away after perspiring. do not sharing clothing or towels with others, showering immediately after athletic activities, wearing loose cotton underwear, avoiding tight-fitting clothes, and using antifungal powder. use topical antifungal medications of the clotrimazole. These anti-fungal agents stop fungi from producing ergosterol, an essential component of fungal cell membranes.so you wil lbe getting relief as early as possible thanking you