doctor has given u medicine for fungal infection
as u r not responding well two thing is possible
-it is not a fungal infection
-or if it is ,then it is due to resistant fungus.
u need to check with KOH MOUNT.
is due to friction ,heat and perspiration.
powder daily after bath
keep it dry and clean
wear loose and cotton cloths
do not remain in one position for more then 30 mins.
once u have control over it ,dont stop totally.
apply cream twice a wk then reduce frequency .