Burning vagina!!!

I had a UTI about 3 weeks ago. I took antibiotics for it. A few days after, I started to feel this burning sensation down there (not when I pee...just all the time). I didn’t have any UTI symptoms in the first place, so naturally I thought the antibiotics didn’t work. I went back to urgent care and the dr assured me I didn’t have a UTI anymore after doing a urinalysis. He looked down there and told me to refrain from sex and shaving, as it’s most likely a irritation.

It went away a few days after, so I didn’t abide by what he told me. Than it came back a few days later and kept going and coming. Now, the burning sensation has been pretty constant for 3 days now and is red in the areas marked in the pic.

It’s not an STD or anything like that, as I was tested for that as a precautionary when I had burning symptoms. I have an app tomorrow with a ob/gyn to get this solved once and for all. Now I’m worried I have another UTI as well ?! I’ve been getting UTIs pretty frequently the last few years and it sucks. I’ve been doing everything to prevent against them, so I’m hoping this isn’t it. Has anyone experienced this?? I have no other symptoms other than a burning sensation.