If edema occurs in patients who drink water at night, it can be eliminated in the following ways: First, if the local edema is caused by drinking too much water at night, you can promote local blood circulation through hot compresses or local massage to make the local edema gradually subside, and you can also exercise through sports, such as fast running or squatting, which can also make the edema disappear after sweating. Second, if the patient has generalized edema after drinking water at night, or if it is accompanied by dizziness and weakness of limbs, he can take oral tachyphylaxis or drugs such as Antiseptic and Diosmin to promote lymphatic reflux and urination to make the edema subside quickly. Third, if the situation is more serious, intravenous tachyphylaxis or mannitol can be injected for dehydration and swelling treatment. It is suggested that if the edema is more serious and needs to be treated with drugs, the patient should go to a regular hospital for examination and then use the drugs under the guidance of a doctor.