 The vast majority of people with aphthous stomatitis have minor symptoms and do not require any specific therapy . The pain is often tolerable with simple dietary modification during an episode of ulceration such as avoiding spicy and acidic foods and beverages . Many different topical and systemic medications have been proposed ( see table ) , sometimes showing little or no evidence of efficacy when formally investigated . Some of the results of interventions for RAS may in truth represent a placebo effect . No therapy is curative , with treatment aiming to relieve pain , promote healing and reduce the frequency of episodes of ulceration . 
