I've tried miconazol & clotrimazol creams & fluconazole 200ml caps for 3 mths. jock itch does not want to go away. what to do next?

Not fungal?: It may not be fungal but a bacterial infection. Your doctor may want to try an antibiotic or do some testing.

Moisture skin folds: Try Nystop powder, avoid tight clothing and lose weight if overweight. Control bold sugars if diabetic. But the key is to keep the affected areas dry, if at all possible. Yeast thrives in moist climates in the body. Air drying, baby corns starch powder are other preventative measures.

Irritant dermatitis?: May be the cause and come and go and not respond to antifungals or antibacterials as it is an irritant phenomenon. Needs a good examination of the rash by a doctor. They can then arrange swabs and fungal scrapings if required +/- treatment +/- dermatology opinion if needed to sort you out. All the best.