Thanks for posting your query. You said that you are a medical student. You may understand better. Itching on the genitalia occurs due to so many causes including stress
, occlusion, irritation by strong soaps and sweat. You have to find out what exactly you suffer from by consulting a dermatologist
. Till that time you may regularly use powders which contain aluminium oxide and weak steroid
creams at night in case of itching.
You may have to undergo blood sugars to rule out diabetes