How to Treat Skin Cuts | A Hands-On First-Aid Guide

What’s the First Step For a Cut?

Before you touch the wound, wash your hands thoroughly. Then, stop any bleeding by applying gentle but firm pressure with a clean cloth or gauze. If you can, elevate the injured area above the level of your heart—this uses gravity to slow the blood flow. The Mayo Clinic notes that holding steady pressure for at least five minutes is usually enough to control visible bleeding.

Once the bleeding has slowed or stopped, rinse the cut under clean, running tap water to flush out dirt and debris. The NHS recommends bottled or tap water, or sterile wipes if you’re away from a sink. This rinsing step matters more than you’d think—it physically removes the bacteria that cause infections.

Should You Use Soap or Peroxide on a Cut?

After rinsing, gently wash the skin around the wound with mild soap. Keep the soap out of the wound itself—it can irritate the fresh tissue. And here’s the counterintuitive part: skip the hydrogen peroxide and iodine entirely. The Mayo Clinic and MSD Manual both advise against them. These antiseptics are too harsh for a minor wound; they kill off healthy cells that your body needs for healing, which actually slows the process down.

Soap and water is the gold standard. If there’s anything visibly stuck in the cut, like a splinter of glass or wood, leave it alone—do not try to dig it out. The NHS warns that attempting to remove an embedded object can make the injury worse and cause more bleeding.

How Do You Bandage a Cut the Right Way?

Once the wound is clean, pat the surrounding skin dry with a clean towel. Apply a thin layer of petroleum jelly to keep the wound moist—a moist environment heals faster and reduces scarring. If you prefer an antibiotic ointment, that’s fine too, though it’s not strictly necessary for a clean cut. Then, cover the wound with a sterile bandage or gauze pad. This keeps out bacteria and keeps the moisture in.

You should change the bandage at least once a day, or any time it becomes wet or dirty. When you do change it, rinse the wound gently again to keep it clean. Reapply the petroleum jelly and a fresh dressing. Leaving a cut exposed to air and dirt is a common mistake that invites infection.

When Should You See a Doctor For a Cut?

Home care is only for minor cuts and scrapes. You should seek medical care if the cut is deep, on your face, longer than about one-third of an inch, or has edges that won’t stay together. If the bleeding doesn’t stop after several minutes of firm pressure, or if you suspect damage to a nerve or tendon, get professional help. If something is embedded and you can’t remove it, or if it’s a puncture wound, see a provider rather than improvising.

Watch for infection signs in the days after the injury: increasing redness, warmth, swelling, pain, or any pus or drainage. A fever alongside these signs is a red flag. And remember tetanus—a shot is recommended if your last one was more than five years ago and the wound is deep or dirty. When in doubt, call your doctor.

If the cut is healing well but you want to minimize scarring or soothe irritated skin, a quality healing cream can make a real difference. Our roundup of the best creams for minor cuts covers the options worth trying.

Done right, a minor cut should start closing up within a few days and heal completely in one to two weeks. Keep it clean, keep it moisturized, and let your body do the rest.