The so-called swollen gums are actually painful at the root of the tooth, and the surrounding flesh of the tooth is swollen, so it is called swollen gums and also swollen flesh of the tooth. The gum swelling depends on what causes it, if the ordinary gum inflammation, eat a little ordinary anti-inflammatory drugs can be, such as metronidazole tablets, tinidazole tablets can be. Prevention: 1, usually pay attention to oral hygiene, brush your teeth, rinse your mouth; do not bite too hard things. 2, the winter climate is cold, teeth are prone to allergies and soreness, especially the teeth have wear and wedge-shaped defects in the neck of the middle-aged and elderly, eating apples, grapes, oranges and candy and other sweet and sour food will cause tooth soreness, some too painful to eat. 3, commonly used desensitizing or anti-acid toothpaste brush teeth: these two toothpaste contains fluorine, and fluorine can prevent teeth in the acidic environment of dephosphorylation decalcification, anti-acid, anti-aging, stop acid pain effect. 4, brush teeth with warm water, warm tea rinse: because the pulp nerve is more sensitive to temperature, especially teeth suffering from tooth wear, dentin exposed teeth, a cold stimulus can cause toothache, and warm water is a natural protector for teeth, can prevent and control allergic toothache; tea contains fluorine, commonly used warm tea rinse, can protect teeth to prevent caries cure toothache.