urinary tract infection
"I took this medicine before bed and within 3 hours I got a severe sore throat and I felt like I had sometime lodged in the back of my mouth.  The following morning I woke up to a very sore jaw and it hurts to open my mouth. The sore throat is still bad, however its not as severe as it first was.  I only took one of the doses, so I do not know what would happen if I kept taking it (don't know how well it would treat the UTI). I've never had an allergic reaction to any other medicine."