Antibiotics start working immediately by rupturing the protective cell walls of harmful bacteria, but you may not feel relief ...

Amoxicillin is a type of penicillin, an antibiotic that doctors prescribe to treat bacterial infections. It takes effect quickly, but it may take 24 to 72 hours to see an improvement in your symptoms.

Approximately one in 20 adults in the U.S. says they used antibiotics without a prescription from a physician in the past year, according to new research in Antimicrobial Agents and Chemotherapy.

Dangerous infections that no longer respond to antibiotics are spreading quickly around the world, increasing by as much as 15% a year.

A new report from the Centers for Disease Control and Prevention on the deadly drug-resistant bacteria NDM-CRE found a 70% ...