I've had a lot of problems with UTI's all my life and the pills I use for the burning is called AZO, carried by most drug stores, WalMart, etc.
These are not cranberry pills, but contain iodine which coats the inflamed tissue of the urethra.
When I used to get them by prescription, they were 200mg and the over the counter ones (AZO) are 95mg, so I take 2 to = the prescription strength.
One word of caution.....your urine will be bright orange and they do stain if you get a drop on your underwear!
Hope you get some relief, I feel your pain, I just got over one!
You never know how strong you are until being strong is the only choice you have.