Herpes Labialis
Prescribe oral or systemic antivirals if lesion is prodromal or early in its clinical course.
Aphthous Ulcer
Reassurance is usually all that is required. Topical benzocaine paste or gel can be prescribed for pain control. Consider topical steroids if lesions are severe or protracted.
Palatal Torus
Simply observe unless interfering with eating or dental appliances.
Leukoplakia
Counsel to stop using tobacco products and refer to an oral surgeon for biopsy if present for longer than 2 weeks.