Ive been dealing with what I think is jock itch for over a year and a half now. Ive tried all kinds of oral medications and creams, and while the redness is gone, my groin, buttocks, and underarms have turned really dark, and sometimes they still itch. What can I do to get rid of the darkness and stop the itching?

that could be post infection hyperpigmentation no need to worry it will resolve with time u can use intimate moisturizer for better results and maintain personal hygiene to avoid recurence of inefction.