urinary tract infection
"was prescribed this and took night before flying back east.  2nd pill during flight. I  thought my face was really dry from airplane because it was really itchy.  I had no lotion so ignored it.   The 3rd pill that night and itchy face felt like wind burn, despite tons of lotion.  The 4th pill in morning but face felt swollen and a little numb, especially around lips.  So I  called the doctor...told to stop taking it and that symptoms should go away next day.  It's day 3 after stopping and face is better but still numbness feeling by lips.  The half-life for  the medicine to leave body should be over by now (well in a few hours).  I assume it will eventually go away but will never take this again."