Does Amoxicillin Help with a Sore Throat?
Medically reviewed by Andre Stone | MD, University of Pittsburgh School of Medicine on August 25th, 2026.
Amoxicillin helps with sore throats only when caused by bacterial infections like strep throat. Most sore throats are viral and won't respond to antibiotics. Studies show 85-90% of sore throats in adults are viral, making antibiotics ineffective. Amoxicillin can treat strep throat caused by susceptible group A streptococcal bacteria. Strep causes about 5-15% of sore throats in adults and 20-30% in children. Your doctor may use a rapid strep test to look for group A strep before prescribing antibiotics. In children and teens, a negative rapid antigen test may need to be confirmed with a throat culture. Taking antibiotics for viral infections can lead to side effects and antibiotic resistance without providing any benefit.
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