After popping a pimple, your top priority is keeping the area clean, moist, and protected while the skin closes back up. A small open wound on your face can heal in about three days if you treat it right, but it can also become infected or leave a dark mark if you don’t. Here’s exactly what to do.
Clean the Area Gently
Before you put anything on the spot, wash it. Use a gentle, fragrance-free cleanser and lukewarm water. Pat dry with a clean towel or tissue rather than rubbing. You want to remove any bacteria, leftover pus, or debris without further irritating the skin. Avoid alcohol-based toners or harsh astringents, which can damage the exposed tissue and slow healing.
Apply a Thin Layer of Petroleum Jelly
Plain petroleum jelly is one of the best things you can put on a popped pimple. It keeps the wound moist, which is critical for faster healing and lower scarring risk. A clinical trial comparing petroleum jelly to antibiotic ointment after skin procedures found infection rates of just 3.6% with petroleum jelly versus 2.7% with antibiotic ointment, a negligible difference. Meanwhile, antibiotic ointments like bacitracin carry a real risk of triggering allergic contact dermatitis on the face. Unless the spot is showing clear signs of infection, petroleum jelly alone does the job.
Apply a very thin layer. You’re not trying to coat your face, just seal the tiny wound so it doesn’t dry out and scab over. Scabs actually slow the process down because new skin cells have to work harder to migrate across a dry, crusty surface.
Cover It With a Hydrocolloid Patch
Hydrocolloid pimple patches are the single most practical aftercare tool for a popped blemish. The inside of the patch contains gel-forming materials that absorb wound fluid while maintaining a moist environment underneath. That moisture supports the growth of new connective tissue and collagen, keeps the pH slightly acidic to discourage bacteria, and even helps break down damaged tissue at the wound site.
One of the biggest practical benefits: the gel layer prevents the wound from sticking to the bandage. When you peel the patch off, you won’t rip away the new skin forming underneath. Hydrocolloid patches also act as a physical barrier against dirt, debris, and the bacteria on your fingertips, which is important because touching the spot repeatedly is one of the fastest ways to cause an infection.
You can wear these patches overnight or during the day under makeup. Replace them when the patch turns white or opaque, which means it has absorbed fluid and needs to be swapped for a fresh one.
What Not to Put on It
Avoid applying acne treatments like benzoyl peroxide or salicylic acid directly on the open wound. These are designed for intact skin with clogged pores, not for broken skin that’s trying to heal. They’ll irritate the raw tissue, increase redness, and can make scarring worse. Save them for the surrounding skin once the wound has fully closed.
Rubbing alcohol, hydrogen peroxide, and witch hazel are also poor choices. They damage the new cells trying to grow across the wound surface. Toothpaste, baking soda, and lemon juice fall into the same category: they feel like they’re “doing something” because they sting, but that sensation is tissue damage, not healing.
Preventing a Dark Spot
The biggest long-term risk from popping a pimple isn’t a scar in most cases. It’s post-inflammatory hyperpigmentation (PIH), a flat dark or reddish mark that lingers for weeks or months after the pimple itself is gone. Popping worsens PIH because it increases inflammation in the surrounding skin.
Once the wound has closed (typically within two to three days for a small popped pimple, since the top layer of skin can regenerate in roughly 72 hours), start protecting the area from UV exposure. Sunscreen with at least SPF 30 on the spot every morning is the single most effective step for preventing a dark mark from deepening. UV light stimulates the pigment-producing cells that are already in overdrive from the inflammation.
After the skin has fully sealed, you can introduce ingredients that help fade any discoloration that’s already forming. Niacinamide, vitamin C, and glycolic acid are all effective options available over the counter. Leave-on products like serums and creams work better than cleansers because they stay in contact with the skin long enough to have an effect. If you’re using a concealer to cover the mark while it fades, make sure it’s labeled noncomedogenic so it doesn’t clog pores and start the cycle over again.
Signs the Spot Is Infected
Most popped pimples heal without complications, but watch for these warning signs over the next few days. An infected pimple becomes noticeably larger and more swollen than a typical blemish. The pain worsens instead of improving. You may notice yellow pus oozing from the site, spreading redness beyond the immediate area, or unusual warmth around the spot. In more serious cases, you might develop a fever or feel unusually fatigued. If any of these develop, the infection has moved beyond what a patch and petroleum jelly can handle, and you’ll need professional treatment.
A Simple Routine to Follow
- Immediately after popping: Wash with gentle cleanser, pat dry, apply a thin layer of petroleum jelly, and cover with a hydrocolloid patch.
- For the next 1 to 3 days: Change the patch as needed. Keep the area moist and hands off. Skip active acne treatments on the spot.
- Once the skin has closed: Begin applying sunscreen daily over the area. Introduce a niacinamide or vitamin C serum to prevent or fade any dark mark.
- For the following weeks: Continue sun protection. If discoloration persists, a glycolic acid product can help speed up skin cell turnover and fade the mark faster.