Ringworm (tinea) is a common fungal skin infection caused by dermatophytes — despite the name, no worm is involved. Ringworm on the skin of the body, groin (jock itch), or feet (athlete's foot) usually responds to over-the-counter antifungal creams and often clears within about 4 weeks; it generally needs treatment to clear rather than resolving on its own. Ringworm of the scalp and nails is different — creams typically don't work, and it usually needs prescription antifungal pills from a clinician. Because look-alike rashes are common and drug-resistant strains are emerging, the CDC suggests confirming any suspected ringworm with a healthcare provider.
Available without a prescription — follow each label.
terbinafine (topical) Lamisil AT allylamine antifungal (topical cream/gel/spray) | Per its Drug Facts label, this OTC cream is for athlete's foot, jock itch, and ringworm on the body. Often a short course (about 1-2 weeks for some sites). Apply a thin layer over the rash and just beyond its edge after washing and drying; finish the full course even after the rash clears. For external skin use only — not for scalp or nails. Stop and see a clinician if it worsens or doesn't improve. |
clotrimazole (topical) Lotrimin AF azole (imidazole) antifungal cream | A widely used OTC cream labeled for ringworm, jock itch, and athlete's foot. Typically applied twice daily for 2-4 weeks; keep using it for the labeled duration even after the skin looks normal, or the infection can return. A reasonable general-purpose first choice for body ringworm. External use only. |
miconazole (topical) Micatin / Desenex azole (imidazole) antifungal cream, powder, or spray | OTC azole cream/powder labeled for ringworm, jock itch, and athlete's foot; powders can help keep skin folds dry. Apply twice daily and continue for the full labeled course (commonly up to 4 weeks). Best for body and groin ringworm; not for scalp or nails. |
butenafine (topical) Lotrimin Ultra benzylamine antifungal cream | OTC cream labeled for athlete's foot, jock itch, and ringworm. Often allows a shorter treatment course than some azoles. Apply as directed and finish the full course. External skin use only; see a clinician if no improvement. |
A doctor may prescribe these — not for self-treatment.
oral terbinafine Lamisil (tablets) systemic allylamine antifungal (clinician-prescribed) | A pill a doctor may prescribe for scalp ringworm, nail infections, or extensive/stubborn body ringworm that topical creams cannot clear. Requires a clinician's diagnosis and is not something to self-start — dosing depends on the site and your liver health, and treatment can run weeks to months. |
griseofulvin Grifulvin V / Gris-PEG systemic antifungal (clinician-prescribed) | A long-established oral antifungal a doctor may choose, particularly for scalp ringworm (tinea capitis), often taken for 1-3 months. Prescription-only; needs medical supervision and a confirmed diagnosis before starting. |
oral itraconazole or fluconazole Sporanox / Diflucan systemic azole antifungal (clinician-prescribed) | Oral azole antifungals a clinician may prescribe for scalp, nail, or widespread/resistant ringworm. Choice and length of treatment are individualized by a doctor, who weighs drug interactions and monitoring — never self-prescribe these. |
prescription-strength topical antifungals Ketoconazole / oxiconazole / luliconazole (Rx) topical azole antifungals (clinician-prescribed) | Stronger or longer-course topical antifungals a clinician may prescribe when OTC creams haven't worked. A provider may also test a skin sample to confirm the diagnosis, since emerging drug-resistant ringworm may not respond to the usual antifungals. |
For a single, well-defined ring of ringworm on the body, groin, or feet, an OTC antifungal cream is the standard first step: clotrimazole or miconazole twice daily, or terbinafine/butenafine for a sometimes shorter course. Apply over the rash and a little beyond its edge after washing and drying the skin, and keep going for the full labeled time (often 2-4 weeks) even after it looks healed — stopping early is a common reason it comes back. Powders and sprays can help in sweaty areas like the groin or between the toes. Important caution from the CDC: do not use OTC creams that contain a steroid (hydrocortisone) or combination steroid-antifungal creams on undiagnosed ringworm — steroids can mask and worsen the infection. Self-care matters too: keep the area clean and dry, don't scratch (it can spread the fungus), wash towels and bedding regularly, don't share towels or combs, and take a pet to the vet if it may be the source. Topical creams work well for simple body, groin, and foot ringworm; scalp and nail ringworm respond poorly to creams and need a clinician.
See a healthcare provider (routine) if the rash is on your scalp or affects your nails, if it covers a large area or there are many patches, or if OTC antifungal cream hasn't clearly improved it after about 2 weeks (or the full labeled course). Because other rashes mimic ringworm and resistant strains are emerging, the CDC recommends having any suspected ringworm — and especially scalp or nail infections — diagnosed by a provider, who may test a skin sample to choose the right treatment. Seek prompt or urgent care if you have a weakened immune system or diabetes, if the area becomes increasingly red, swollen, warm, painful, or starts draining pus (signs of a bacterial skin infection), or if you develop fever. Children with scalp ringworm should be seen, as it usually requires prescription oral medication.
General reference, not medical advice, and not a substitute for your doctor or pharmacist. The right choice depends on your symptoms, health conditions, age, and other medicines — always read each label and confirm before taking anything.
tolnaftate (topical) Tinactin thiocarbamate antifungal cream, powder, or spray | An older OTC antifungal labeled for ringworm, athlete's foot, and jock itch; also marketed to help prevent athlete's foot. Apply twice daily for up to 4 weeks. A reasonable option, though azoles, terbinafine, or butenafine are often used first for active body ringworm. |