I have been diagnosed first with Tinea corporis, 2 years ago, used Pevaryl, and gone, now i have the same symptoms and diagnosed as eRythema annulate centifugum, and got steroid cream, after stress in both cases its came , only where i am under stress, first time i had surgery and after that couple of days, now my husband was diagnosed with cancer and immediately came around stomach, and back, but mostly if i am seating and that area is sweating.