With proper treatment, jock itch should clear up in three to four weeks. If you don't treat it, jock itch can last for months. This infection often comes back more than once, especially if you also have fungal infections on your feet or toenails.

What kills jock itch instantly?

Store-bought topical antifungals clear up most jock itch infections. They work pretty quickly, eradicating the fungus in about two to four weeks. Topical azole antifungals, such as clotrimazole, miconazole, econazole, ketoconazole, and oxiconazole require twice-daily administration for two to four weeks to do the job.

How long can jock itch stay?

How long does jock itch last? Jock itch can last anywhere from two weeks to a few months.