Hi there I have a erythrasma rash that won't go away . It is in my groin . So going to the gym is painful walking for long periods is painful and even working long hours is painful . I was on erythromycin for two weeks and it appeared to mostly clear up but then it has come back and won't seem to go away with erythromycin cream and diaper rash cream over top to stop the sweating . I have not had erythromycin for a good two weeks . I use 100% unscented products and I am 209 pounds . I've been back to the doctor three times she won't treat me with another script of erythromycin which I feel at this point well completely kill it . Can any of you make any suggestions that might help me out . Thank you so much .