I'm sure it would help you be more comfortable (I've used it for this purpose) but it will do nothing to help the UTI. Neither will the Lasix, except you will probably void more often while on it. If you do suspsect a UTI, need to check with your doctor. Like the other person that responded to you, I also take Macrobid, but (and this is very important) I have had bacteria resistant to Macrobid. Always best for the doctor to culture and see what grows out.