Earlier this week my gyn prescribed metronidazole
500mg twice a day for irritation. To be taken for a week. I took one the day it was prescribed, 2 the next day and one the day after that, because I was having alot of side effects. I had some of the usual side effects you get with any drug, diarrhea, upset stomach, metallic taste, I also had side effects like ear congestion, pain in my cheekbone, lip and tongue burning, my lips looked a little swollen, pain behind my eyes.