Penis foreskin red i dont have any pain.

My age is 20 weight is 97 and i had unprotected sex 3 month ago after 2 months the first prblm i get is buring in pee nd some white spot on penis glans but i consult with on of my family homeopathic doctor he said its just a urinanry tract infection and everythings gets okay the spots gone and the buring gone in 2 days but after few days my skin gets red when i masturbate and my foreskin cuts burn then i apply ketoconazole on my foreskin and after that whenever i did somthing sexual my skin got tensed but now its not buring but kinda irritate and then i apply ketoconazole and its gone but comes again when i masturbate i dont know how then again i apply that keto tube and its gone but after masturbation or sex it comes again ! And now i dont have any problem or kind of bad symptoms only red foreskin mark 1-2 and one red little rash on my penis glans what should i do i get relief completely with antifungal tube but still after masturbation problem arise again ..!