May 30, 2018 · A rash under your breast can be caused by a number of things. Other than a heat rash, they generally fall into four categories: infections, allergies, autoimmune disorders, and cancer. Heat rashAuthor: Susan York Morris. Sep 19, 2016 · In the unfortunate, rare cases, a rash on the underside of the breast is an indication of breast cancer. Inflammatory breast cancer is one that causes breasts to heat up resulting in a rash under one or both breasts. It is vital that if you think you have cancer that you go speak to a medical professional to get you the help you need.4/5(251).
A rash under the breasts (intertrigo) is a common problem for many women. When you suffer from this rash, the skin under the breast can also become very itchy, painful, and in some cases, start blistering and even cause a burning sensation. Jun 15, 2016 · A look at rash under breast, heat, yeast infection under the breast, itching, pictures, the causes as well as how to get rid of it. Rash under Breast. Sometimes, the skin under the breast becomes red and much irritated. This is known as the breast rash, or Interigo.Author: Yousef Emad.