<s>[INST] I have had a rash of some sort on my left foot only. My doctor been treating it with clotrimazole cream. Did not work. Then he prescribed me prednisone 10 mg. For 2 weeks. In 3 days rash cleared up no itching. I finished 10 day once a day 10 mg. Prednisone. After 3 days of finishing medication rash on foot came back. What may have caused this? [/INST] hi,waht your doctor prescribed u is worked very well,as u said your rash cleared up but u hav not taken full course of that steroid and also steroid withdrawl shoud be gradual like 2 times a day for first week,then once a day for next week,and then every alternative day for another 15 days.i think this is the only possiblity that your rash on foot came back again after medication.Go to your doctor again n take help accordingly. </s>