On Amoxicillin for Strep Throat?

Antibiotics such as amoxicillin, cephalexin, or penicillin are used to treat strep throat. Antibiotics work only against bacterial infections such as strep throat. They will not help sore throats caused by allergies or viral infections such as colds.

How long does it take amoxicillin to work on strep throat?

Someone with strep throat should start feeling better in just a day or two after starting antibiotics. Call the doctor if you or your child are not feeling better after taking antibiotics for 48 hours.

Is 7 days of amoxicillin enough for strep throat?

Editor—Zwart et al recommend seven days of treatment for streptococcal infections as opposed to three days. For several decades we were educated to continue penicillin for such cases for no fewer than 10 days.