Impetigo in Adults' Feet: What to Know

The infection may begin where skin has been scratched, cracked, rubbed by footwear, or affected by another itchy rash. On the feet, moisture between toes and repeated friction can make the skin easier to damage. Lesions may be itchy or tender and can spread to nearby skin through touching, scratching, towels, socks, or shoes. Crusting alone does not confirm impetigo; eczema, contact irritation, fungal infection, and other conditions can look similar.

An adult with sores on the sole, between the toes, or around the ankle may need an examination because treatment depends on the extent and exact location of infection.

Gently wash the area with clean water and mild soap, then pat it dry. Do not pick crusts or share towels, socks, footwear, or personal grooming items. Cover oozing areas with a clean dressing and wash hands after touching the skin. Keep feet dry, change socks when damp, and avoid scratching. A clinician may recommend a prescribed topical treatment for a small area or oral treatment when infection is more extensive; use it exactly as directed. Read about [Topical Antibiotic Therapy](/treatments/medical-dermatology/topical-antibiotic-therapy/) and [Antibiotics For Skin Infection](/treatments/medical-dermatology/antibiotic-therapy-for-skin-infection/).

Arrange prompt medical assessment if redness, warmth, swelling, pain, or drainage is spreading, if walking becomes difficult, or if you develop fever or feel unwell. Seek urgent care for rapidly worsening swelling, severe pain, red streaks, or involvement near the eye. People with diabetes, reduced circulation, immune problems, or a foot wound should seek advice early because foot infections may need closer monitoring.

Ask whether the appearance fits impetigo or another foot rash, whether a swab is needed, which treatment is suitable for the affected area, how to protect household members, and when it is safe to return to shared activities.