The skin under my breasts gets very sore on a regular basis. This happens all year round not just in the summer when it's hot. Sometimes it's just a little itchy but sometimes the skin looks very sore and the skin seems to be oozing and smells. What can I use to treat it and is there a way to preven...

I have very sore and itchy skin under my bust and sometimes there is also what appears to be tiny blisters. It's something that occurs at anytime of the year not just when it's hot.