Aphthous ulcers are among the most common oral lesions ... RAU is classified as minor, major, and herpetiform on the basis of ulcer size and number. The cause of RAU is idiopathic in most patients.

Major mouth ulcers, on the other hand ... nose and throat (ENT) physician if aphthous ulcers appear elsewhere on your body, or if you have other symptoms like a fever, swollen lymph glands ...

Levamisole has shown variable efficacy in reducing ulcer frequency and duration in patients with minor RAU. Oral corticosteroids should be reserved for severe cases of major RAU. Because of its ...