Which antibiotics are used for the treatment of peritonsillar abscess (PTA)?

Updated: Apr 06, 2020
  • Author: Udayan K Shah, MD, FACS, FAAP; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Peritonsillar cellulitis may respond to oral antibiotics. Antibiotics, either orally or intravenously, are required to treat peritonsillar abscess (PTA) medically, although most PTAs are refractory to antibiotic therapy alone. Penicillin, its congeners (eg, amoxicillin/clavulanic acid, cephalosporins), and clindamycin are appropriate antibiotics. In rare cases of spontaneous PTA rupture, mouthwashes are still recommended for hygienic reasons. A 10-day course of an oral antibiotic is prescribed.

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