What to do if I bite my fingernail skin?

If you bite the skin around your fingernails, first clean the area with soap and water to reduce the risk of infection. Apply an antiseptic ointment to promote healing and cover it with a bandage if necessary. To prevent further biting, consider keeping your nails trimmed short and using bitter-tasting nail polish designed to deter nail-biting. If the area becomes red, swollen, or painful, consult a healthcare professional.