Primary prevention
Patients should be instructed to avoid oral trauma, recognized trigger foods, and the use of acidic foods and drinks.[1]
Secondary prevention
Daily multivitamins do not appear to prevent recurrent aphthous stomatitis (RAS). Supplementation with the recommended daily intake of essential vitamins failed to reduce the number or duration of recurrent episodes in a randomized, double-blind, placebo-controlled study.[73]
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