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Hi Dr Stephen

please help me out.There is a heavy swelling in my Pennis from last one month.Actually i have a bad habit of laying down on bed on my tummy side while having  sex chat with my girl friend and discharge by rubbing my pennis against the bed.
But from last one month there is a heavy swelling in my Pennis.I dont know why.I have always had safe sex and from last 2 years  i havent been physical with anyone.
Sometimes the swelling is less and sometimes is more.Its heavy after having discharge.My age is 27 years and in previous medical history i havent suffered from any severe disease.
The swelling is basically near the forehead of the Pennis and it gets swelled heavily.In swelling the Foreskin gets inflated on one side.
Please suggest any medicine if available.