Pain at tip or urethra

Hailey

Hey y’all! So I’m very prone to UTIs and typically know when I get one right away and try to get it treated as soon as I start noticing any symptoms. With that being said, I went to the clinic to be tested and it didn’t come back very strong. So I got std tested and those came back negative as well. I’m On day 4 of Bactrim but it still burns when I pee. Does anyone know what it could be or suggestions to help? Thanks!