Jock itch (medically tinea cruris, or "ringworm of the groin") is a common fungal infection that causes an itchy, burning, often ring-shaped rash in the creases of the groin and upper thighs. Most cases respond well to an over-the-counter antifungal cream, spray, or powder used consistently for a couple of weeks, combined with keeping the area clean and dry; MedlinePlus notes jock itch usually responds to self-care within a couple of weeks. Stronger prescription antifungals are reserved for stubborn, widespread, or recurrent infections diagnosed by a clinician.
Available without a prescription — follow each label.
Lotrimin AF Topical azole antifungal | A standard OTC choice for jock itch, named by CDC and MedlinePlus. Apply a thin layer to the rash and a little beyond its edge, usually twice daily. Keep using it for the full course the Drug Facts label states (commonly about 2 weeks for jock itch) even after itching stops, or the infection can return. |
Micatin / Desenex Topical azole antifungal | Closely related to clotrimazole and a standard OTC option named by CDC and MedlinePlus. Comes as cream, spray, and powder; sprays and powders can be convenient for the sweaty groin area and help keep skin dry. Follow the Drug Facts label for duration and finish the course. |
Terbinafine Lamisil AT Topical allylamine antifungal | An OTC topical antifungal listed by CDC for skin ringworm including jock itch. This is the over-the-counter CREAM, gel, or spray applied to skin — not the prescription terbinafine tablets, which are a separate clinician-only treatment. Follow the Drug Facts label and finish the full course. |
Tolnaftate Tinactin Topical thiocarbamate antifungal | An older OTC antifungal MedlinePlus names for jock itch (and athlete's foot). Available as cream, powder, and spray. A reasonable alternative if an azole irritates your skin; apply per the Drug Facts label and complete the full course. |
A doctor may prescribe these — not for self-treatment.
Prescription-strength topical antifungals (e.g. ketoconazole, oxiconazole, luliconazole, econazole creams) Topical azole / other antifungal (prescription) | If an OTC cream has not cleared the rash after about 2 weeks, MedlinePlus notes a clinician may prescribe a stronger topical antifungal. In the US, prescription-strength ketoconazole cream (and related agents) requires a clinician, who confirms the rash is fungal (sometimes with a skin scraping or culture) and picks the agent — do not source these on your own. |
Oral antifungal tablets (e.g. terbinafine, itraconazole, fluconazole) Systemic antifungal (prescription) | Reserved by a clinician for severe, widespread, or recurrent jock itch that does not respond to topical treatment, per MedlinePlus. These pills require a prescription and monitoring (they can affect the liver and interact with other drugs) and should never be self-started. CDC also notes some emerging ringworm strains can resist the antifungals usually used, which is one reason a professional diagnosis matters. |
Antibiotics (only for secondary bacterial infection) Antibacterial (prescription) | Antibiotics do NOT treat the fungus and are not a jock-itch remedy. MedlinePlus notes a provider may prescribe them only if scratched, broken skin develops a separate bacterial infection. This requires an in-person diagnosis; never take leftover antibiotics for a rash. |
Topical corticosteroid (only when prescribed, usually combined) Topical anti-inflammatory steroid (prescription/clinician-directed) |
Start with an OTC topical antifungal: clotrimazole, miconazole, terbinafine, or tolnaftate are all reasonable first choices, and evidence does not strongly favor one over another for ordinary jock itch. Sprays and powders (miconazole, tolnaftate) can suit very sweaty or hairy areas because they help keep skin dry. Apply to the rash AND a small margin of normal-looking skin around it, and — this is the step most people skip — keep applying for the full duration on the Drug Facts label (commonly about 2 weeks; the NHS notes ringworm may need a daily antifungal for up to 4 weeks) even after the itch is gone, because stopping early is a common reason it comes back. Self-care matters as much as the cream: dry the groin thoroughly after washing, wear loose cotton underwear, change out of sweaty clothes promptly, don't share towels, and treat athlete's foot at the same time since the same fungus can spread from the feet. A pharmacist can look at the rash and recommend a suitable product if you are unsure. If you've been treating correctly for about 2 weeks with no improvement, stop self-treating and see a clinician rather than layering on more products — especially avoid steroid creams, which can disguise and worsen a fungal rash.
See a clinician (routine visit) if the rash has not improved after about 2 weeks of correct OTC antifungal use, keeps coming back, spreads widely, or you are not sure it is jock itch. Get medical advice sooner if you have a weakened immune system or diabetes, if the rash is very painful or extensive, or if it involves the scrotum or penis — MedlinePlus notes classic jock itch usually stays in the upper-thigh creases and spares these areas, so other involvement may suggest a different diagnosis. Seek prompt care for signs of a secondary bacterial infection — increasing redness, warmth, swelling, pus, oozing, or fever — as that may need antibiotics. Anyone who has used a steroid cream on the area and seen it worsen should also be evaluated.
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.
| A clinician may add a short course of a mild steroid to calm severe inflammation, but a steroid used alone can mask and worsen a fungal infection ("tinea incognito"). Use only if and exactly as a doctor directs — do not apply a leftover steroid cream to a suspected fungal rash. |