Ringworm on Legs: Treatment & Prevention - Expert Advice

Ringworm (tinea corporis) is a fungal skin infection—not a worm. On legs, it appears as red, scaly, expanding rings with central clearing. Highly contagious but treatable.

Treatment Steps

1. Confirm diagnosis: See a clinician; other rashes mimic ringworm.
2. Topical antifungal: OTC terbinafine, clotrimazole, miconazole 2x daily for 2–4 weeks (continue 1 week after clearing).
3. Hygiene: Wash daily with soap; dry thoroughly. Use separate towel.
4. Loose, breathable clothing: Reduces moisture/friction.
5. Don't scratch: Spreads infection; causes scarring.
6. Antifungal powder: Helps keep area dry.
7. Launder items: Hot water for clothes, towels, sheets.
8. Avoid sharing: Towels, razors, clothing.
9. Trim nails: Reduces scratching damage/spread.
10. See doctor if: No improvement in 2 weeks, spreading, fever, immunosuppressed, or scalp/beard involvement (needs oral Rx).

Prevention

• Keep skin clean/dry; change sweaty clothes promptly.
• Wear flip-flops in communal showers/pools.
• Treat pet fungal infections (zoonotic).