Hello It seems like a fungal infection. You should try to keep the area dry and wear loose cotton clothes as well as cotton undergarment.. Use of dusting powder like onabet dusting powder after bath on dry skin will help. You will need to take an atifungal oral tablet course after meeting a dermatologist and you can use KZ gold soap and apply onabet cream twice a day Hope this helps Best Dr Batul Patel Www.Drbatul.com