Most ingrown fingernails can be fixed at home with warm soaks, a small piece of cotton, and a few days of patience. The nail edge grows into the surrounding skin fold, causing pain, redness, and swelling. Unlike ingrown toenails, which get most of the medical attention, ingrown fingernails follow the same basic mechanics and respond to the same treatments. If there’s no sign of infection, you can usually resolve the problem yourself within a week or two.
What Causes an Ingrown Fingernail
The most common trigger is trimming your nails too short or rounding the corners too aggressively. When you cut the nail below the tip of your finger, the skin at the edge can fold over the nail as it grows back, trapping it. Nail biting creates the same problem, often with jagged edges that dig into the skin more easily.
Other causes include injuring the nail (slamming it in a door, for instance), having naturally curved nails, and fungal nail infections that thicken or distort the nail plate. Repeated exposure to water or chemicals can soften the skin around the nail, making it easier for the edge to press inward. Some people are simply more prone to ingrown nails because of the shape they inherited.
How to Treat It at Home
Home treatment has two goals: soften the skin so the nail can move freely, and gently lift the nail edge away from the skin fold. Here’s the process:
Soak your finger. Fill a clean bowl with warm water and add a spoonful of salt or Epsom salt. Soak the affected finger for about 20 minutes, a few times a day. This softens both the nail and the surrounding skin, reduces swelling, and makes the next step easier. Afterward, rinse your hand and dry it thoroughly with a clean towel.
Lift the nail edge with cotton. After soaking, take a tiny piece of clean cotton or gauze and tuck it gently under the ingrown edge of the nail. This creates a small barrier between the nail and the irritated skin, relieving pressure and encouraging the nail to grow outward instead of into the fold. Replace the cotton at least once a day, ideally after each soak, until the nail has grown past the point where it was digging in.
Apply antibiotic ointment. After placing the cotton, dab a thin layer of over-the-counter antibiotic ointment (the kind containing polymyxin and neomycin) onto the area and cover it loosely with a bandage. This helps prevent bacteria from entering the irritated skin while it heals.
Resist the urge to dig under the nail with sharp tools or to cut a notch in the center of the nail (a common but ineffective folk remedy). Aggressive poking introduces bacteria and can make the problem significantly worse.
Signs of Infection
An ingrown nail that becomes infected is called paronychia. It develops quickly, sometimes within hours. The hallmarks are increasing pain, warmth, redness, and swelling along the nail fold. Pus may collect along the nail margin or underneath the nail itself.
Left untreated, the infection can spread deeper into the fingertip, a more serious condition that causes the entire pad of the finger to become swollen, tense, and extremely painful. In rare cases, infection can track along the tendon sheath inside the finger. If you see pus forming, notice red streaks extending away from the nail, develop a fever, or feel throbbing pain that doesn’t improve with soaking, you need professional treatment rather than continued home care.
When a Doctor Needs to Step In
If home treatment hasn’t worked after a week, or if the nail keeps growing back into the skin after it heals, a doctor can perform a minor procedure to fix it. The most effective approach is partial nail removal: the portion of the nail digging into the skin is cut away under local anesthesia. In cases that keep recurring, the doctor may also treat the exposed nail root with a chemical that prevents that strip of nail from regrowing.
Healing after a partial nail removal typically takes six to eight weeks. If the entire nail needs to be removed (which is uncommon for fingernails), expect eight to ten weeks. During recovery, you’ll keep the area clean and bandaged, and most people can use their hand for light tasks within a few days.
Special Risks for People With Diabetes
Diabetes changes the equation. Reduced blood flow can slow nail growth and thicken the nail plate, both of which increase the likelihood of ingrown nails in the first place. More importantly, nerve damage from diabetes can dull sensation in the fingers, meaning you might not notice an ingrown nail until it’s already infected. In diabetic patients, what starts as a minor ingrown nail can progress to a deep bone infection if it goes unrecognized. Regular self-examination of your nails and routine visits with a podiatrist or hand specialist are worth building into your care routine.
How to Prevent Ingrown Fingernails
Proper trimming is the single most effective prevention strategy. The American Academy of Dermatology recommends cutting fingernails almost straight across, then using a file or emery board to slightly round the corners. This keeps the nail strong while preventing sharp edges from catching on skin. A few more habits that help:
- Don’t cut too short. Leave the white free edge of the nail visible. Cutting below the fingertip gives the skin room to fold over the nail as it regrows.
- Stop biting or picking. Torn, uneven nail edges are far more likely to grow into the skin than cleanly trimmed ones.
- Use sharp, clean clippers. Dull clippers crush and splinter the nail rather than cutting it cleanly, leaving rough edges that can dig into the surrounding skin.
- Moisturize your cuticles. Dry, cracked skin around the nail is more vulnerable to being pierced by the nail edge.
If you’re prone to ingrown nails despite good trimming habits, the shape of your nail bed may be the underlying factor. In that case, keeping the nails slightly longer and filing them regularly is often more effective than frequent clipping.