Ive been dealing with redness and rashes under my private area for the past two months. It started with itching, and then after about two weeks, the skin became red. The affected area has been spreading fast, and despite using various creams and dusting powders, its still not getting better. Can you help me understand what might be causing this and what I should do next?

That could be fungal infection,u need to take oral and topical antifungal medications,visit Dermatologist for appropriate management,maintain personal hygiene to avoid recurrence.