Help uti?

So about a week ago I am pretty sure I had a UTI. I waited until 4 days ago to go to the dr. (I hate drs). They gave me an antibiotic and I've also been taking an over the counter medicine AZO to help with the pain and symptoms. It seems to be helping it very very slowly. I can pee more now than I could. But I am having an issue with burning while I pee, after, and all day. It's kind of a sharp pain no matter how I sit or lay down etc. It has got better since I've been taking both of those medicines but what could this burning be?!? It hurts very badly. I thought it was from a UTI but the burning doesn't seem to ease or go away. 
Any suggestions?