I have a tooth infection causing swollen gland on one side of throat just started on penicillin when will my throat go back to normal?

Hopefully: In a few days on the antibiotic, assuming the infection is sensitive to penicillin. good luck.

Infection: Assuming the throat infection is bacterial and from the tooth and your doctor prescribed the appropriate antibiotic regimen, the infection should begin to resolve within a couple of days. However, I hope your are also receiving the necessary dental treatment to address the tooth infection. Antibiotics alone will not eliminate the cause of the dental infection.

Yes: Once the infection is gone your throat will heal,and feel normal again. Remember that just the antibiotic alone will. It cure a dental infection, you need to,have the tooth treated to cure the infection.