I started wit white rashes on my private area and now its spreading on my legs .can u someone tell me wats wrong

I just read your post on the mouth sores. If I were you I would make a doctors appointment asap. Here is a dermatology website, you may be able to find the sore on it. Good luck DermAtlas: Dermatology Image Atlas with 9712 Dermatology Images (http://dermatlas.med.jhmi.edu/derm/)