When is antibiotic therapy recommended for impetigo?

Impetigo commonly causes blisters or shallow sores that break and form golden-brown crusts, often around the nose, mouth, or on exposed skin. It spreads readily through contact and shared towels or clothing. A small localised area may be managed with medicine applied to the skin, while more widespread, recurring, or difficult-to-reach sores may lead a clinician to prescribe an antibiotic by mouth.

The clinician also considers fever, pain, nearby swelling, allergies, age, pregnancy, and other health conditions. Do not remove crusts forcefully or apply a household antiseptic without advice, as irritated skin can be harder to assess.

Wash hands after touching the area, keep sores covered with a clean dressing when practical, and avoid sharing towels, razors, clothing, or bedding. Launder items that touch the sores and keep fingernails short to reduce scratching. Children should stay away from close-contact activities according to the treating clinician’s advice. Use prescribed treatment for the full directed course and seek review if new sores continue to appear.

Arrange prompt assessment if sores are spreading quickly, painful, swollen, or accompanied by fever. Urgent help is needed for marked weakness, confusion, breathing difficulty, rapidly increasing facial swelling, eye involvement, or darkening skin. A child who seems unusually sleepy or is not drinking needs prompt medical attention. Repeated episodes also warrant evaluation for an underlying trigger.

Ask whether the sores need topical or oral treatment, how to cover them, and when close contacts can safely return to school or work. Ask what improvement should look like and which symptoms mean the medicine or diagnosis needs review.