Chaffing rash? would be a skin infection with a yeast infection also. the smell comes form the yeast infection and this can happen any where on the body when the skin gets raw and the germs and yeast can invade the under layers of skin. and you need to have this checked by the doctor because of the chance of this getting into the blood system and being a poison to the rest of the body and also this can cause you to get big sores all over the body and this needs to be cleaned and creams and medicines applied to heal this before this gets any worse.

