I am a 20/f. went to the dentist & had a root canal. i also had a abscess was put on purmycin & adco-metrondaz. they made me nauseous. today was the last day of the medications and i didn't take it as i havea fever of 38.3. is it the medication?

Fever: Antibiotics are supposed to prevent fevers, not cause them. If, however, you are having an allergic reaction to the medication it can cause a fever. But so can viral diseases (common cold, Flu, Covid-19, etc.) that are not treatable with antibiotics that are designed to treat bacterial infections. Call your General Physician and report your symptoms.