bladder infection
"Cystitis for what seems forever. Take Keflex 500mg. when an attack occurs. Told later by chemist who knew how often I get Cystitis, could go on preventative 250mg. daily so saw Dr. who said OK. After being months free, Dr.said no, go off it for a while. Three weeks later, worst dose of Cystitis ever. Luckily have Keflex on hand so along with Ural, will be seeing Dr. very soon. What's the risk of being on a preventative dose every day?"