Ringworm (Tinea) in Babies and Children
Content reviewed against published AAP, CDC, Mayo Clinic guidelines
Last reviewed:
Ringworm is a common fungal skin infection that has nothing to do with worms. It causes a ring-shaped, red, scaly rash with a clear center and raised edges. In children, it can affect the body (tinea corporis), scalp (tinea capitis), or feet (tinea pedis).
Key takeaways
- Ringworm is a common fungal skin infection that has nothing to do with worms.
- Duration: Body ringworm typically clears in 2-4 weeks with proper antifungal treatment. Scalp ringworm requires 4-8 weeks of oral antifungal therapy.
- Go to ER if: Severe allergic reaction to antifungal medication
- No vaccine currently available
Symptoms
How It Presents by Age
0-6 months
Uncommon in this age group but can occur. May appear less ring-shaped and more as general red patches. Often acquired from household pets or infected family members.
Risk level: Low
6-12 months
Can appear anywhere on the body. May be confused with eczema. Ring shape becomes more classic as lesion develops over days.
Risk level: Low
1-3 years
Classic ring-shaped lesion. Scalp ringworm (tinea capitis) becomes more common and may cause patchy hair loss with scaling.
Risk level: Low
3-5 years
Peak age for scalp ringworm. Often contracted from other children at daycare or school, or from pets. Body ringworm is straightforward to diagnose.
Risk level: Low
Treatment
Topical antifungal cream
Over-the-counter clotrimazole (Lotrimin) or terbinafine (Lamisil) cream applied twice daily for 2-4 weeks. Continue for 1 week after the rash clears.
Oral antifungal (scalp ringworm)
Scalp ringworm requires oral antifungal medication (griseofulvin or terbinafine) for 4-8 weeks as topical treatments cannot penetrate hair follicles.
Antifungal shampoo
Selenium sulfide or ketoconazole shampoo used 2-3 times weekly as an adjunct for scalp ringworm to reduce fungal shedding.
Keep area clean and dry
Wash affected area gently with soap and water and dry thoroughly before applying antifungal cream.
Home Care
- Keep the affected area clean and dry
- Apply antifungal cream in a slightly larger area than the visible rash
- Wash hands after touching the rash
- Use separate towels for the infected child
- Wash clothing, towels, and bedding in hot water
- Check household pets for skin lesions and treat if infected
- Avoid tight-fitting clothing over the affected area
When to Worry
Go to the ER if:
- Severe allergic reaction to antifungal medication
- Rapidly spreading redness, swelling, and pain suggesting bacterial superinfection
- High fever with widespread skin infection
Call your doctor if:
- Suspected scalp ringworm (requires oral medication)
- Rash not improving after 2 weeks of over-the-counter antifungal treatment
- Infection on the face or near the eyes
- Signs of secondary bacterial infection
- Multiple patches appearing
- Child has a weakened immune system
Keep an eye on:
- Rash is spreading despite 2 weeks of consistent antifungal treatment
- Scalp area is boggy, swollen, or draining pus (kerion)
- Secondary bacterial infection signs — increasing redness, warmth, or pus
- Rash covers a large body area
- Child is immunocompromised
Prevention
- Teach children not to share combs, brushes, hats, or hair accessories
- Keep skin clean and dry
- Wear sandals in public showers and pool areas
- Check pets regularly for ringworm (bald patches, scaly skin)
- Treat infected pets promptly through a veterinarian
- Wash sports gear and clothing after each use
- Avoid skin-to-skin contact with infected individuals
Contagion & Incubation
Incubation
4-14 days after skin contact; 10-14 days for scalp ringworm
Contagious for
Contagious as long as the rash is present and untreated. Becomes non-contagious after 48 hours of antifungal treatment.
Duration
Body ringworm typically clears in 2-4 weeks with proper antifungal treatment. Scalp ringworm requires 4-8 weeks of oral antifungal therapy.
Frequently asked questions
How long does ringworm (tinea) last?
How does tinea corporis spread?
When should I take my baby to the ER?
Can tinea corporis be prevented?
When can my child return to daycare?
Sources
All content follows our editorial policy and is reviewed against published clinical guidelines.
2,705 evidence-based guides6 authoritative medical sources
Related Illnesses
Bottom line
Ringworm (Tinea) is treatable with appropriate medical care. Seek emergency care if severe allergic reaction to antifungal medication.
Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.