But several different conditions could be causingyourarmpitrash.

Read on for what they told us.

It’s an umbrella term for several types, including atopic,seborrheic, and allergic contact.

Close up of a woman looking to the side, her harms up

Delmaine Donson / Getty Images

Of these, the first two are relatively rare in the armpit, notes Goldbach.

Still, she adds that an irritant contact dermatitis is more common than a true allergy.

Discontinuing the use of the deo is step one, followed by using topical anti-inflammatory creams.

Once the rash has resolved, switching to a fragrance-free, hypoallergenicdeodorantis a good idea, says Goldbach.

(Song adds that using powder can help.)

Changing out ofsweaty workout clothesASAP is also a good idea.

But it will also look a little different than standard psoriasis.

Song tells us it has a very specific presentationnamely, well-demarcated, ring-shaped plaques with red borders.

Treatment typically includes the use of topical antifungals.

Candida

This is another jot down of fungal infection, but one caused specifically by candida yeasts.

(AKA: It’s ayeast infectionin your armpits.)

It will look like red plaques with nearby small, satellite red lesions, says Song.