She needs to have a sterile culture done. Free catch samples just aren't that reliable. They will send it to the lab and they will be able to determine the exact antibiotics she needs.
Most UTI's are caused by Ecoli which is very resistant to antibiotics. I went through this with Lady a few years ago. It turned out she had two different strains of Ecoli and needed two different antibiotics to clear up her infection.
Most UTI's are caused by Ecoli which is very resistant to antibiotics. I went through this with Lady a few years ago. It turned out she had two different strains of Ecoli and needed two different antibiotics to clear up her infection.