I Hv Skin Infection From Last 5 Months.it Is Like

I hv skin infection from last 5 months.it is like a ring type,small rings appear,and very very itchy,I hv applied many creams,like Betnovate gm,Triboderm .and ate medicines also but still not going..it is in the pvt parts ,underarms,and few on my eyebrows..pls suggest me some medicines Thank u