STOP MASTURBATING FOR A FEW DAYS AND IT WILL STOP OR STOP HAVING SEX FOR A WHILE
I am not sure but I heard two things can help:
1- date (it is a kind of Asian fruit that is available in USA or Europe)
2- it is a kind of food (ingredients : Flour,butter,seed,...)If you really like to prepare it I will write it to you.
I am sure that there is another herbal thing for such a problem but I can not remember it now.
I hope you cure soon.
p.s. Visit some indian or persian herb shops.