How long does impetigo take to heal?

Impetigo is a contagious bacterial infection affecting the surface of the skin. Blisters or sores can break, ooze and form yellow-brown crusts. New spots should stop appearing as treatment takes effect; existing crusts then loosen and the skin underneath repairs itself. Scratching, eczema, friction or continued contact with infected fluid can delay recovery and spread the infection to nearby skin.

Healing time is not a reliable way to confirm the diagnosis. Crusting skin can occur with several conditions, including irritation or an underlying rash such as Atopic Dermatitis, so an examination may be needed.

Gently wash the affected area, pat it dry and keep it covered with a clean dressing when practical. Wash hands after touching the sores, avoid sharing towels or clothing, and launder items that contact the area. Keep fingernails short so scratching causes less damage. Use prescribed treatment exactly as directed; a clinician may recommend Antibiotics For Skin Infection or Topical Antibiotic Therapy depending on the number and location of sores.

Arrange medical advice if sores are spreading, painful, repeatedly returning, or not beginning to improve after treatment. Seek prompt care for rapidly increasing redness or swelling, fever, marked tenderness, pus, or involvement near the eyes. A baby, a person with reduced immunity, or someone with a large affected area should be assessed without delay.

Ask whether the appearance fits impetigo, how long to use the recommended treatment, and when it is reasonable to return to school, work or close-contact activities. Also ask how to protect eczema-prone skin and what to do if new sores appear.