Bone infection
"I was prescribed metronidazole 400mg after the extraction of an infected wisdom tooth. I was taking amoxicillin prior to the surgery and for 3 days following the surgery however the infection continued to spread and my whole face was swollen. On returning to the oral surgeon I was prescribed metronidazole which began to take effect and reduce the infection after 2 days. I have experienced no adverse side effects from taking this medication."