Cephalexin yeast infectionCan Keflex cause yeast infections? On One Hand: Keflex Can Cause Yeast Infections According to medicinenet. . . Everything you need to know about will cephalexin cure a yeast infection. may result in oral thrush or a new vaginal yeast . . Does cephalexin cause yeast infections? Cephalexin is an antibiotic used to treat bacterial overgrowth causing infections such as of the upper respiratory system, ear . . GENERIC NAME: CEPHALEXIN - ORAL (sef-a-LEX-in) BRAND NAME(S): ... more