<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hello, I have had a itchy rash behind my knee for a bout a month and a half that just doesn t seem to go away. I ve used bactracin, hydrocortisone, and this benadryl anti-itch cream, while it solves the symptom the rash itself seems to be getting worse. I am guessing that its a fungal rash?  <response>: Hi, thank you for posting on Chat Doctor. As per your history, you may have fungal infectionTina corporal or frictional dermatitis.my treatment advise would be:-- maintain hygiene.-- wear loose cotton clothes.-- stop applying corticosteroids cream on your own.-- consult a dermatologist nearby for proper diagnosis and treatment. You may need a course of oral and topical antifungals for the same.-- you may take tab levocetrizine twice a day for itching. Wishing you healthy skin thank you 