HI doctor,I am having itching,red rashes around my butts and in my inner thighs.I was living in a hostel,i and my roommates used to share soap,i think i got it from there.I had consulted a doctor he suggested me Cosvate GM 20g (clobestol propionate,Gentamicin and Micronazale Nitrate Cream) and cefid tablets.this is what happens i take the medicines maintain hygiene and every symptoms stops just a dark color remains,then i stop because it is no longer bothering me.But after a week or so all these problems come back and i am fed up with it.Is there any permanent cure ?