Fact sheet

Paronychia

Inflammation of the skin fold around a fingernail or toenail. Acute paronychia comes on over hours to days, usually as a bacterial infection a few days after nail biting, picking a hangnail, a manicure or an ingrown toenail. Chronic paronychia lasts 6 weeks or more, usually in people whose hands are often wet, and behaves more like dermatitis than an infection.

Treatment options

Ratings show how strong the research is.

What you can do

See your GP if

See a doctor the same day for red streaks up the hand or foot, fever, a very swollen fingertip pad, or pain on moving the finger.

Evidence and more information

Reviewed October 2026. General education, not personal medical advice. Treatment depends on your situation, so talk to your GP or pharmacist.