Facial swelling can be caused by physiologic swelling, allergies, medications, soft tissue inflammation and other factors. There is no fastest way to eliminate facial swelling. It is recommended to stop the use of suspicious cosmetics and medications, and give antihistamines and anti-infective drugs for the cause of the swelling, which can promote the swelling to subside. 1. Physiological swelling: drinking too much water before going to bed, sleeping with a low pillow may cause physiological swelling, swelling can gradually subside after waking up, generally do not need special treatment. 2. Allergy: just change the new cosmetics, allergic to the ingredients inside the cosmetics, may lead to facial swelling, it is recommended to stop the use of suspicious cosmetics, the symptoms can be gradually reduced. 3. Drugs: Long-term use of glucocorticoid drugs cause side effects, which may lead to facial swelling. It is recommended to change the medication under the guidance of the doctor, and the symptoms can be gradually improved with the passage of time. 4. Soft tissue inflammation: inflammation of the gums, dental caries lead to facial soft tissue inflammation, causing facial swelling, it is recommended to go to the hospital dental clinic, give metronidazole, amoxicillin and other drugs, to promote inflammation subside. If it is caused by dental caries, consider filling treatment if necessary. Facial swelling, related to a variety of factors, it is recommended to go to the hospital general surgery clinic, first to clarify the cause and then give targeted treatment.