The most common cause of pustules is acne, a skin condition that can clog skin pores with oil and dead skin cells. Pustules may also occur from an allergic reaction to food, environmental ...

Acne is what Dr. Murphy-Rose calls an umbrella category. You may see pustular acne in the form of one to three-millimeter red ...

it can develop into pustules, cysts or other types of acne.” Below, we’ve rounded up dermatologist-backed moisturizers that’ll hydrate your skin without clogging your pores in the process.