There is no absolute way to prevent all mouth sores. However, you can take certain steps to avoid getting them. You should try to: avoid very hot foods and drinks; chew slowly; use a soft toothbrush and practice regular dental hygiene; see your dentist if any dental hardware or teeth may be irritating your mouth; decrease stress; eat a balanced diet; reduce or eliminate food irritants, such as hot, spicy foods; take vitamin supplements, especially B vitamins; drink plenty of water; don’t smoke or use tobacco and avoid or limit alcohol consumption.
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