Hi, From the description, you might be having tinea cruris. However seborrheic dermatitis and inverse psoriasis should be ruled out. For the same you need to visit a dermatologist nearby. I can see you have tried many creams for your concern but all of these contain steroids. Steroids reduce inflsmmation due to fungus but can lead to flare up of fungal infection. Hence such creams are not advised without doctor s prescription. Fungal infection can be treated by Taking oral drug like fluconazole weekly Application of plain antifungal cream like clotrimazole, sertraconazole or terbinafine. Take tabket cetirizine to reduce itch Wear loose cotton clothes and underclothes Dust the area with antifungal dusting powder in morning. Hope that would help you. Take care