Pustules are pus filled pimples that may appear on the face or elsewhere on the upper body. Pustules may last for a few weeks, but if they last longer than 6–8 weeks and do not respond to treatment, it might be a good idea to see a doctor or dermatologist. Cystic acne causes swollen, red bumps to form.

How long does it take for a pustule to go away?

"That's something people often underestimate," Sinclair said. "It takes four to five days for a pimple to fully form and then another four to five days for it to fully go away.

Do pustules go away on their own?

Pustules are irritating but otherwise harmless, and they usually go away on their own. People can often prevent them or reduce their severity by keeping pustule-prone areas clean and oil free.