HELP ME!

[DoctoBe10299]

About a month ago, i had unprotected anal sex with a girl i met. I ATTACHED PICTURES. That was about the first time of my life. About three days later, i started having an irritated meatus, and burning while i pee. I then saw, i had Smegma on my foreskin, which i now dont that i wash it everyday. I went to an Urgent Care (Pinnacle Health) and saw a doctor. The doctor then did a urine culture/test and it came back negaitive. He then did STD testing which also came back negaitive. He then said i have a non-std case of Urethittis.
He put me on Doxcyclcine, however i had to stop taking it as it made me sick. I also get the urge to go sometimes.

A month later (NOW) i am still having the irritated meatus, pinching like, and burning while i pee. The gland of the penis, also gets very red at times as well as the meatus. I went back to the doctor, he did another UTI test, as it was negaitve. He then gave me creme, to help it in case of Balantitis. I am currently still on that, but its not helping i dont think.

During masturbation, the penis head also gets red like, with the meatus really red. After i am done, it burns a bit then goes away. Inside, the meatus on both sides they look irritated but on the left side it looks like a little cut.

I go to my normal family doctor, at the end of the month, cause their so booked.

Is there any natural remedies like to wash it with, apply or anything OTC to help me with this or does anyone know what it is?
I feel it is a Yeast Infection but idk.

IM ONLY 20 YEARS OLD.