Bactrim for yeast. It depletes the normal flora in the vaginal area. . If you are sure you have a yeast infection (burning, itching, white clumpy 'cottage cheesy . Within 10 mins I developed SEVERE vaginal itching. Sulfamethoxazole and trimethoprim are both antibiotics that treat different types of infection caus. It's my fourth day on bactrim and still have some symptoms. . . . Will Bactrim help cure yeast infections in males? ChaCha Answer: Bactrim is used to treat ear infections, urinary tr... more