If the eyeball be kept perfectly clean and no organism be admitted from the outside then ulceration will not follow.
Its special uses are in ulceration of the mouth or tongue (ulcerative stomatitis), tonsillitis and pharyngitis.
On the other hand, when the ulceration is old and the circulation through it poor, the aim of the therapeutist is to reawaken the normal reparative process, to bring about increased circulation and increased tissue change, and thereby insure healing.
But in the more severe forms ulceration of the mucous membrane takes place.
H 2 -receptor antagonists have not been shown to be effective against ulceration induced by aspirin in aspirin-intolerant patients.