The main cause of gum swelling and pain is poor oral hygiene leading to the deposition of plaque, calculus and soft tartar on the tooth surface near the gum margin, which induces gingivitis. Treatment usually requires attention to oral hygiene and a good habit of rinsing and brushing after meals. Mastering the correct method of brushing can effectively prevent the occurrence of gingivitis. One, antibiotics, caused by systemic diseases should be the main treatment of systemic diseases. Amoxicillin, first and second generation cephalosporins and metronidazole can be used during the acute inflammation period. Second, scaling, remove plaque and tartar attached to the surface of the teeth to make the surface smooth and reduce irritation. Correction of food impaction. Scaling, commonly known as scaling, is used when necessary. Thoroughly remove tartar and control plaque. Third, vitamins, appropriate use of vitamin C, vitamin A and D to improve muscle resistance and repair ability, which helps periodontal tissue repair. Four, remove the etiology and actively treat various chronic diseases. Fifth, local medication, which can be applied after removing tartar, plaque and food residue. Apply 1% iodine glycerin locally after rinsing with 3% hydrogen peroxide solution or saline. Can also use 1 to 5000 potassium permanganate solution or compound borax solution rinse mouth, but also optional use of gargling drugs. Such as mouth rinse, chlorhexidine rinse, etc.