with your given description it looks like resistant tinea cruris infections or may be erythrasma (skin condition affecting the folds in the body) you have not mentioned the duration of individual drugs you have taken. itraconazole is a good drug for this but you have to take 100 mg daily for around 28 days. along with this you can try sertaconazole cream with fusidic acid cream to cover erythrasma twice daily for minimum of three months. follow certain general measures such as: avoid heat moisture and maceration (softening by soaking). dry the body folds finger and toe webs thoroughly after bathing. the probable causes:may be not taken full duration of the course of medicines for fungal infection. investigations to be done:1. blood sugar. 2. skin scraping for koh (potassium hydroxide). differential diagnosis:1. tinea cruris. 2. erythrasma. 3. candidal dermatitis. probable diagnosis:recalcitrant tinea cruris. regarding follow up:revert back after the tests to a dermatologist online. ---> <link>
please help with my recurrent fungal infection.