i started with this very dry itchy circle on my leg an it went awa then i started to get them on my neck and back very itchy and now my back has whit blochy marks on my back the red circle that was on my leg i thought it was ring worm but it wasent ive been useing this loation called versel selenium sulfide lotion 2.5% usp its takeing some of the itch away but i still can feal the earge to itch ive washed all my beddingn and close and bras but its not working and im so itchy ive been useing all non scented or purfume creams and nothings working what could it be an now my face it going all dry pleas help me