Underarm rash can be caused by allergies, fungal infections, psoriasis, shaving, or systemic medical conditions. Treatment includes antifungal creams, hydrocortisone ointments, and antibiotics. Most underarm rashes respond well to treatment.
An underarm rash is a raised or flat, often red, rash that occurs in the armpit. The rash under the armpits can itch and become painful. There are many causes of an underarm rash. Most commonly, the cause is allergic in nature. Often a new deodorant or soap can be to blame. Often, new laundry detergent or unworn clothing can also be the source of the rash. In addition to the allergic reaction, the rash may be related to medical conditions, such as fungal infections or psoriasis. In many cases, underarm rashes clear up on their own without any treatment.
Generally, the armpits provide a perfect breeding ground for fungus to grow. For this reason, fungal infections are a common source of underarm rashes. Typically, fungal infections that occur under the arms present with redness and severe itching. Sometimes inflammation and a burning sensation are also present. Treatment for fungal armpit infections usually includes antifungal creams or ointments. Topical antifungals are usually effective, but a doctor may also recommend oral antifungal medications.
Often, a dermatological condition called psoriasis can cause an armpit rash. Normally, psoriasis refers to a condition in which the skin becomes inflamed and scaly. Skin patches can even take on a silvery appearance. In addition to the psoriatic patches and rashes that occur under the arm, they can also appear in the creases of the arm. In general, topical hydrocortisone ointments are effective in treating the underarm rash and inflammation of psoriasis.
Shaving your underarms can also cause a rash because the hair follicles can become infected. Normally, shaving the underarm area can cause irritation and friction which can also lead to infected hair follicles. This common medical condition is referred to as folliculitis. Most of the time, when shaving is stopped for about a week, the rash and bumps can clear up. A hypoallergenic shaving cream can also prevent folliculitis. If this condition persists, people are advised to consult their doctors. Antibiotics may also be recommended.
Systemic medical conditions can also be the cause of an underarm rash. Sometimes, diseases like diabetes can cause skin manifestations to occur in the armpit area. Rashes related to diabetes are typically more difficult to treat. Diabetes-related skin rashes or infections can be caused by an overproduction of yeast. Although diabetes and other diseases may be the culprits for underarm rashes, most underarm rashes are rarely serious and most always respond favorably to treatment.
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