Smelly Rash Under Breast. Hives or urticaria is an itchy rash of red bumps or welts that can develop anywhere on the skin including under the breast. For possible medical conditions it is best to seek medical opinion.
Women having large breast are more susceptible to this discomforting smell. Heat rash or prickly heat is a common cause of rashes between the breasts. The bumps usually blanch or turn white when a person presses on them.
It can occur in both men and women.
The most common reason for sour or foul smell under the breast is due to too much of sweat accumulation. Rash under or between breasts is an indication of various skin conditions. In some cases your rashes may lead to fungal infections because the yeast and fungi will thrive in warm moist environment. The symptoms of intertrigo rash beneath the breast include a reddish brown rash a foul odor cracked or crusty skin and a raw itchy and oozing skin or rash.