Patients with drooling sensation at the right corner of the mouth should be alerted to facial nerve palsy. Patients with a history of cold, wind, or viral infection, resulting in facial nerve edema and facial nerve palsy, will have drooling, cheek puffing and air leakage, wind leakage when speaking, incomplete eyelid closure, shallow nasolabial folds, and shallow frontal lines, which require timely hospital examination and treatment. If you have drooling sensation on the right side of your mouth, you should be alert to stroke diseases, such as hypertension, diabetes, hyperlipidemia, cerebral arteriosclerosis, and other risk factors for cerebrovascular disease. When a sudden sensation of drooling occurs, be alert to the precursor of stroke, and be sure to promptly consult the neurology department of the hospital to be examined and judged by the doctor, and if necessary, be given treatment to improve blood circulation.