Hitching problem in private part. Guard.

Sir,i m suffering from a very bad hitching problem on private area since many months...its so embarrassing.if i get wet then after sometime hitching start,if i get sweat again begins hitching,if i wore jeans or any pants which usually tight,again after sometime itching get start..im so tired of this...when i was in class listening to lecturing hitching was so uncomfortable daily atleast 2 time it occures but still not cured as i applied primary medicine like itch guard..it doesn't work at all.once i showed to doctor he gave a injuction and gave a oitment...its nice for some time itching almost gone..but when that oitments got over..i didn't purchase another one i neglect it till now im suffering from this...its so embarrassing...its a fungal infection i know..but i want remedy...