I am 24 years old Male....i have been having burns in my anus when i masturbate..it has been happening for a month now..it doesnt happen much in routine except when i try to masturbate..as if lot of hot stuff is flowing between my penis and anus...i use skin ointment to get some relief when i feel burns..I masturbate 5 to 6 times a week..can somebody tell me the reason..