Doctors typically use antibiotics to treat urinary infections. Drink two glasses of cranberry juice without soda or sugar in it. This is known to have preventive action against recurrent UTI. Just, go for 500 mg cranberry supplements daily. Talk to your family doctor if cranberry is right for you particularly when you are on blood thinner. Generally a spasm takes place in bladder. Drink water a lot. This may not sound like the most extraordinary remedy, but it is one of the most important you can do when you have a UTI go pee.