What Causes Recurring Itching And Rashes On My Penile Shaft For The Past Year, Which Temporarily Improve With Zole F Ointment?

I am 25 years male , i am suffering from itching on inside penis skin on penis shaft from last 1 year , intially I used zole f ointment prescribed by the doc on which I got result and whenever I applied zole f the rashes were gone but after sometime it s coming back so from last 1 year it s recurring kindly help me in this doctor