A method of treating aphthous ulcers and other mucocutaneous disorders is disclosed. The method comprises contacting the mucocutaneous disorder with a composition in the form of a paste solution gel quick-disintegrating tablet mouthwash ointment cream powder adhesive patch aerosolized spray lozenge troche dentifrice or dental floss that contains an effective amount of an active compound of the formula: wherein R1 is hydrogen alkyl phenyl carboxyl hydroxyl alkoxy carboxyalkyl (i.e. esters) c...