I'm 23 Year Old Boy Earlier My Pennies Was Not

I'm 23 year old boy earlier my pennies was not smelling but I remember the day I started washing my pennies by hot water it started to give bad smell gradually. Now I daily wash my pennis by warm n soapy water but smell goes for 2-3 hours maximum, I want to go to doctor but I'm confused whom shall I go shall I go for skin specialist or which specialist?