There is no uniform rapid method to reduce swelling of red and swollen gums. To reduce swelling should be dealt with according to the cause, common causes include dental calculus, wisdom teeth pericoronitis, can be used to scaling, periodontal scraping, rinsing and so on. 1. If it is due to poor oral hygiene that causes plaque to gather in large quantities, combined with a large amount of food debris to form calculus. The calculus will produce persistent stimulation of the gums, resulting in redness and swelling of the gums, and should be scaled to remove the calculus. Scaling alone can only remove the calculus above the gums, if plaque and calculus remain below the gums, then periodontal scaling should be used. 2. If there are wisdom teeth, the gums around the wisdom teeth are red and swollen, forming a wisdom tooth pericoronitis, and in severe cases there is a restriction of mouth opening, the periodontal pockets should be rinsed alternately with hydrogen peroxide and saline, and iodized glycerin should be used. Red and swollen gums may have other causes, it is not recommended to blindly deal with their own, you should go to the local medical institutions according to the different causes of the selection of appropriate treatment, the use of drugs need to follow the doctor’s instructions.