For a minor skin infection, the most effective thing you can put on it is surprisingly simple: clean it thoroughly with water, apply a thin layer of plain petroleum jelly (like Vaseline or Aquaphor), and cover it with a clean bandage. Over-the-counter antibiotic ointments are an option too, but research shows they don’t reduce infection rates compared to plain petroleum jelly. What matters most is keeping the area clean, moist, and protected.
Clean the Wound First
Before putting anything on an infection, you need to flush out bacteria and debris. Run clean tap water over the area for several minutes, gently removing any dirt or crusted material. A review of seven clinical studies found that tap water works just as well as sterile saline for wound cleaning, with no significant difference in infection rates. Tap water also scored higher in patient satisfaction and costs essentially nothing.
Avoid hydrogen peroxide, rubbing alcohol, or iodine directly on open skin. These kill bacteria, but they also damage the healthy cells your body needs to heal. Plain water does the job without that tradeoff.
What to Apply After Cleaning
Once the area is clean, apply a thin layer of an ointment to keep it moist. You have a few options:
- Plain petroleum jelly (Vaseline, Aquaphor) is the simplest and cheapest choice. A study from Ohio State found no significant difference in wound infection rates between petroleum jelly and over-the-counter antibiotic ointments. It creates a moisture barrier that helps cells migrate across the wound and speeds healing.
- Over-the-counter antibiotic ointment (Neosporin, Polysporin, Bacitracin) is what most people reach for. It works, but comes with a real downside: allergic reactions. A meta-analysis of over 450,000 adults found that about 3.2% are allergic to neomycin, one of the active ingredients in triple-antibiotic ointments like Neosporin. In North America specifically, the rate climbs to 6.4% in adults and 8.1% in children. If the area gets itchier or more red after you apply antibiotic ointment, you may be reacting to the product itself rather than the infection getting worse.
- Medical-grade honey is a less conventional option with strong clinical backing. It has both bacteriostatic and bactericidal properties, meaning it can slow bacterial growth and kill bacteria outright. It works through multiple mechanisms, including hydrogen peroxide production and a naturally low pH. Clinical studies have shown it can stop wound infections within two to three weeks while accelerating new tissue growth. One study found a 180% increase in skin cell closure rates. Look for products specifically labeled “medical-grade” rather than using grocery store honey, which isn’t sterilized for wound use.
Keep It Covered and Moist
Leaving an infected wound open to air is one of the most common mistakes people make. Moist wound healing produces less scarring, less pain, and faster recovery than letting a wound dry out and scab over. A bandage also physically blocks new bacteria from getting in.
For most minor infections, a simple adhesive bandage or gauze pad secured with medical tape works fine. Change the dressing at least once a day, or sooner if it gets wet or dirty. Each time you change it, rinse the area again with water and reapply your ointment. Semi-permeable dressings (the clear, film-like bandages) let oxygen and water vapor pass through while keeping bacteria out, which can be a good option for areas that are hard to keep covered with traditional bandages.
Bacterial vs. Fungal Infections Need Different Treatment
Everything above applies to bacterial skin infections, which are the most common type from cuts, scrapes, and breaks in the skin. But if you’re dealing with a fungal infection, the approach is different. Petroleum jelly and antibiotic ointments won’t help a fungal problem.
Fungal skin infections tend to look bright red with color and scaling that’s most intense at the border of the rash. You may notice small, defined pustules along the edges. The area typically itches or burns rather than feeling tender or warm to the touch. Ringworm, athlete’s foot, and jock itch are all fungal infections. These need an antifungal cream or spray, not an antibacterial product. Most are available over the counter.
Signs the Infection Is Getting Worse
Minor infections generally improve within a few days of proper care. The inflammatory phase of healing, where you see redness and swelling, typically lasts several days before the body shifts into repair mode. Most wounds heal fully in four to six weeks.
Some infections, though, need more than topical treatment. Cellulitis is a bacterial infection that has spread into deeper layers of skin and tissue. It shows up as a poorly defined area of redness that feels warm, swollen, and tender to the touch. Unlike a surface-level wound infection, cellulitis spreads outward rather than staying contained. You may notice red streaking extending away from the infected area, which means the infection has reached the lymphatic system. Pus draining from the wound or a soft, squishy area beneath the skin can signal an abscess forming underneath.
Fever, chills, rapid breathing, or feeling confused alongside a skin infection are signals that bacteria may have entered the bloodstream. These symptoms need urgent medical attention.
What Doesn’t Work
A few popular home remedies either lack evidence or can make things worse. Hydrogen peroxide and rubbing alcohol are too harsh for open wounds. Tea tree oil has some antimicrobial properties in lab settings, but concentrations strong enough to fight infection can irritate broken skin. Coconut oil, while moisturizing, hasn’t shown reliable results against established skin infections in clinical trials.
The simpler your approach, the better. Clean water, a moisture barrier, and a fresh bandage give your body the best environment to fight the infection on its own. If the redness is spreading, the pain is increasing, or you’re not seeing improvement after two to three days of consistent care, the infection likely needs prescription-strength treatment.