Oral Cavity Infections
The vast majority of infections of the oral cavity are superficial and respond readily to appropriate therapy. Occasionally, however, a peritonsillar abscess will occur as a complication of either acute or chronic tonsillitis. Peritonsillar abscesses bulge into the oropharynx and are very painful. If not properly drained and treated with antibiotics, they, like retropharyngeal abscesses, may spread into the adjacent parapharyngeal space and cause damage to either vascular or neural structures. Focal abscesses may also result from a foreign body that has penetrated the oral mucosa.