Hello, I have a UTI. I have had many in my lifetime. I am allergic to Cipro, Sulfa, Penicillin, Keflex and Macrodantin. I get a terrible reaction if I take these antibiotics. Would you know any other drug to take for my problem? I have the M.T.H.F.R gene which makes taking anything hard for me, but I do need an answer. I cannot take generic drugs only brand. I would so appreciate your help. Thank you, Nancy Lamb