Medicines for Jock itch

What it is

Jock itch (tinea cruris) is a common fungal infection of the skin in the groin area, and the same family of fungi that causes athlete's foot and ringworm. It causes an itchy, red or discoloured, often ring-shaped rash with a raised, scaly border, usually in the creases of the groin and inner thighs, which can spread outwards and may be sore or burning. It thrives in warm, moist conditions, so it is more common in warm weather, with sweating, in people who are overweight, and in those who wear tight or damp clothing; it is more common in men. It often occurs alongside athlete's foot, and the fungus can spread from the feet to the groin (for example via a towel or hands). It is contagious but easily treated. It is diagnosed by its typical appearance.

How it is treated

Jock itch is usually treated effectively with antifungal creams (or sometimes powders or sprays), available from pharmacies, applied to the affected area and a little beyond it for the recommended time — often continuing for a week or so after the rash clears to prevent it returning. Alongside treatment, keeping the area clean and dry is important: washing and drying the groin thoroughly (including after exercise), wearing loose, breathable cotton clothing, changing out of sweaty clothes promptly, and not sharing towels. Because it often coexists with athlete's foot, treating the feet at the same time (and putting socks on before underwear to avoid spreading the fungus from foot to groin) helps prevent reinfection. If it does not clear with antifungal cream, is widespread, keeps coming back, or the diagnosis is uncertain, a doctor can advise, as occasionally a stronger antifungal or a different diagnosis is needed. The reassuring message is that jock itch is common, easily treated, and preventable with good hygiene.