Phenazopyrid symptoms and conditions

I was prescribed phenazopyridine Tab 200mg, same as above, for the pain and burning associated with a UTI. I had been taking AZO that was working just fine, as with any OTC med. the mg was low. Because of such a high mg on the phenazopyridine it works much better. The only problem I am having is the swelling of my lips, the blisters on the edge of my lips and a sore in my mouth. It works soooooo good, and the reaction isn't all that bad, I am still deciding whether or not to finish the medication, after all I only have 3 more!!!