Paronychia on a finger: what to know

The affected skin is where the nail edge meets the fingertip. A recent hangnail, nail biting, manicure injury, splinter, or repeated wet exposure can let germs enter small breaks in the skin. Acute paronychia often develops around one nail. Ongoing irritation can produce recurrent swelling and changes to the nail surface. A yeast-related process is one possibility, particularly when the nail fold stays damp; see Skin Yeast Infection for related information.

A pocket of pus suggests a collection that may not settle with home care alone. The appearance of a swollen nail fold can overlap with other finger problems, so an examination matters if the pattern is unusual or worsening.

Keep the finger clean and dry between gentle washes. Warm water soaks may ease tenderness and encourage drainage when there is no deep wound; dry the area carefully afterward. Do not cut the nail fold, squeeze a pus pocket, pierce the skin, or bite hangnails. Protect the finger from detergents and repeated soaking, and avoid manicure work until the skin has healed.

A clinician may recommend a topical medicine, oral antibiotics, or drainage depending on the examination. Antibiotics For Skin Infection explains one treatment pathway, while Abscess Drainage covers care when a collection needs releasing.

Arrange prompt medical assessment if redness or swelling is spreading, pain is severe or increasing, pus is collecting, the finger becomes difficult to bend, or symptoms do not improve with careful home measures. Seek urgent help for fever, red streaks moving up the hand, marked swelling, numbness, or a finger that looks blue or pale. People with diabetes, reduced immunity, or poor circulation should seek advice early after a nail-fold injury.

Ask whether the problem is acute or recurrent, whether a pus pocket needs drainage, which medicine is suitable for your health history, and how to prevent repeated nail-fold injury. Mention recent manicures, nail biting, wet work, cuts, splinters, and any medicines already tried.