Thanks for writing your query.
It will be helpful if you give more information like
1. Is there any rash or eruptions on the penis?
2. Any recent sexual contact?
3. Since how long you are having this problem?
Common causes of itching in penis are allergic and sexually transmitted diseases. Other causes can be fungal infection
, tight clothing,etc.
You can apply locally ointment containing steroid like betamethasone
in addition to antifungal like miconazole
and antibacterial like gentamycin
Apply this ointment 2-3 times in a day.
You can also take orally one tablet of fenofexadine
180 mg for relief in addition to the above mentioned ointment.
Keep your genital area clean. Donot use harsh perfumed soaps. Wear clean and comfortable undergarments.
I hope this is helpful to you.