In a clinical setting, it is not practical to separate recurrent aphthous stomatitis (RAS) from RAS-type ulceration in every case, so both conditions have been considered together for the purpose of this article. Due to the lack of consistently effective therapeutic options for RAS, other approaches to treat the disease are considered here, beginning with an analysis of possible aetiological factors. The aetiology of RAS, the most common mucosal disease, remains undefined thus far. A few researchers have proposed psychological disorders as a major factor impacting RAS. Some systemic diseases and lifestyle habits are also reported to be associated with RAS; these also impact mental health. I believe that all habits contributing to mental health might also benefit patients with RAS. I suggest that practitioners of oral medicine should recommend a healthy lifestyle to patients with RAS, before prescribing medicines.