I guess it depends on where you are 'spotting' from?
As far as I am aware, you shouldn't have vaginal spotting. Someone please correct me if I am wrong...
What makes you think you have a UTI? You will need to see a doctor to get it fixed up, but it the mean-time you can drink lots of water and go to the chemist/pharmacy and ask for something
- I am not sure what it would be called there, but you dissolve tablets in water, kind of like Berocca, and it helps relieve the pain and discomfort of the UTI very well. Just tell them you need something to help while you wait to see a doctor.
If you have blood in your urine, I would suggest you go to the ER as it would mean the infection was further along and you need to treat it ASAP.
Also, drinking cranberry juice can help.