A sudden swelling of the lips with a large bag, generally speaking, the common clinical causes are mainly the following cases. First, allergic patients in contact with pollen, dust or after eating seafood, mango and other allergens, will cause allergic allergic reaction in the body. At this time, patients need to stay away from allergens as soon as possible and reduce allergic allergic reactions in the body by taking oral loratadine, intravenous application of vitamin C, calcium gluconate and other anti-allergic drugs. By drinking a lot of water to promote the excretion of toxins, the symptoms of swollen lips can be gradually relieved after 24-48 hours in patients with milder symptoms. Second, patients who eat faster in the state of hunger can inadvertently bite the lips and cause local hematoma, which is manifested as bulging pouches. Local ice can be applied to reduce tissue exudation. Oral medications such as Mai Zhi Ling and Blood Stasis Pill can promote the absorption of hematoma and thus reduce the symptoms of lip bulge.