Patients & CaregiversHealthcare ProfessionalsWorldwide
HomeAbout MerckProductsNewsroomInvestor RelationsCareersResearchLicensingThe Merck Manuals
THE MERCK MANUAL MEDICAL LIBRARY: The Merck Manual of Medical Information--Home Edition
Tips for better results
ABCDEFGHI
JKLMNOPQR
STUVWXYZ

Section

Subject

Topics

Tonsillar Cellulitis and Abscess

Pronunciations

Tonsillar cellulitis is a bacterial infection of the tissues around the tonsils; a tonsillar abscess is a collection of pus in the area of the tonsils.

Sometimes, bacteria, usually streptococci, that infect the throat can spread deeper into the surrounding tissues. This condition is called cellulitis. If the bacteria grow unchecked, a collection of pus (abscess) may form. Abscesses may form next to the tonsils (peritonsillar) or in the side of the throat (parapharyngeal). Abscesses occur in children but are more common in young adults.

Symptoms

With tonsillar cellulitis or an abscess, swallowing causes severe pain. A person feels ill, has a fever, and may tilt his head toward the side of the abscess to help relieve pain. Spasms of the chewing muscles make opening the mouth difficult (trismus). Cellulitis produces general redness and swelling above the tonsil and on the soft palate. An abscess pushes the tonsil forward, and the uvula (the small, soft projection that hangs down at the back of the throat) is swollen and can be pushed to the side opposite the abscess.

Diagnosis and Treatment

A doctor makes the diagnosis by viewing the throat. Tests are not usually performed, but if the doctor is not sure whether an abscess is present, computed tomography (CT) can be used to identify one. Sometimes if the doctor suspects an abscess, he inserts a needle into the area and tries to draw out pus.

Antibiotics, such as penicillin or clindamycin Some Trade Names
CLEOCIN
, are given intravenously. If no abscess is present, the antibiotic usually starts to clear the infection in 24 to 48 hours. If an abscess is present, a doctor must insert a needle in it or cut into it to drain the pus. The area is first numbed with an anesthetic spray or injection. Treatment with antibiotics is continued by mouth.

Peritonsillar abscesses tend to recur; recurrences can be prevented by removing the tonsils (tonsillectomy (see Ear, Nose, and Throat Disorders: Diagnosis and Treatment), which is usually performed 4 to 6 weeks after the infection has subsided or earlier if the infection is not controlled with antibiotics.

Last full review/revision February 2003

Back to Top

Previous: Laryngoceles

Next: Vocal Cord Contact Ulcers

Audio
Figures
Photographs
Pronunciations
Tables
Videos
Contact UsSite MapPrivacy PolicyTerms of UseCopyright 1995-2007 Merck & Co., Inc.