redness of the urethra

Hello, for over 3 years I have a reddened opening of the urethra without any symptoms, only when I touch the reddened area I feel pain. The redness appeared after the procedure of lengthening the frenulum. Additionally, I feel itchy around the anus, I don't know if it's related. I was at the doctor who prescribed an ointment for mycosis but it did not help. Anyone have any idea what it might be? Sorry for my English

image