I am perplexed by intense itching on the arch of my right foot. Have raised flesh colored bumps on my ankles and around the front of the foot. Treated with athletes foot medication both OTC and perscription. MD gave me a pill for two weeks. Dermatologist I saw on Monday could not see anything. Bottom of feet apear dry and white. Small white circles after I let it go overnight. Treating for 7 weeks now. Only let it go one night. Help!