How can you get rid of the itchy rash between the breast?

Depends...: ...On what is causing it. If it's a yeast infection, your doctor will prescribe an antifungal cream or gel. If it's an allergic or irritant reaction to perfume or something else that was applied to the skin, you'll need a corticosteroid cream. It all depends on the diagnosis.

Depends on what the: cause is. These lesions need to be visualized & a history needs to be obtained in order to make an accurate diagnosis. Sometimes lab testing or biopsy is necessary.