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Definition of quinsy. plural. quinsies. : an abscess in the tissue around a tonsil usually resulting from bacterial infection and often accompanied by pain and fever.
Quinsy symptoms. The symptoms of quinsy, also called peritonsillar abscess, are similar to those of tonsillitis. Quinsy treatment. Treatment is, as for all abscesses, through surgical incision and drainage of the pus, thereby relieving the pain of the pressed tissues. Antibiotics are also given to treat the infection.