Medically reviewed by Renee Nilan, MDMedically reviewed by Renee Nilan, MD COVID arm rash is a delayed hypersensitivity reaction that occurs approximately five days after the COVID-19 vaccine.

Rashes are common under the arms because the skinfold creates a warm, moist environment. Additionally, the skin can chafe easily and the armpit has hair follicles and sweat glands. These factors ...

An armpit rash is often caused by irritation from sweat, friction, soap, or dryness. It could also be an allergic reaction to fragrances or propylene glycol (a deodorant ingredient). Other causes ...

It most commonly affects young children and develops in the folds behind the knees and elbows, and on the hands, arms, face, and scalp. Heat rash usually improves on its own after cooling down or ...

The rash and the itching might be due to an allergic reaction, and so waxing might be the culprit, but it's more likely that your anti-perspirant is to blame. Try switching from an aerosol to an ...

It can spread to other parts of your body, including your back, breasts, arms, and buttocks. A PUPPP rash usually goes away on its own and doesn’t cause any scarring or lasting skin color changes.

Sammy explained: "He was complaining about under his arm [armpit] hurting ... see his temperature reading - but that was when I saw a rash. "My first thought was that it was chicken pox and ...

The skin there had several large and small red marks that wrapped around her arm. “This is not a rash,” she said in the video. “This is the burn that I sustained yesterday from grilling corn.” ...