So, we’ve all heard of yeast and fungal infections and where they can creep up on our bodies. But did you know the less-than-dynamic duo can come together in your armpit? That’s what we call armpit ...

Some causes of underarm rash include infection, allergic reaction, and inflammation. Itchy, inflammatory, bacterial, or fungal rashes in your armpit can be mild or severe, short-lived or chronic.

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 of ...