Facial paralysis is mostly categorized into three stages: acute stage, recovery stage, and sequelae stage, and effective treatments should be taken in time to avoid the occurrence of sequelae. Common causes of facial paralysis include stroke and acute idiopathic facial nerve palsy. Patients with stroke should be treated with anti-embolism, circulation improvement and nerve nutrition at an early stage, and rehabilitation can be given after the condition is stabilized. Patients with acute idiopathic facial nerve palsy are given corticosteroid treatment at an early stage, and prednisone is commonly used in the clinic. Antiviral and acupuncture treatment can be given, but there is no strong evidence to prove that it is effective, and acupuncture is more commonly used in China, so it is recommended to be given after the condition is stabilized. The causes of central facial paralysis are different, and the recovery is also different. Idiopathic facial nerve palsy can be fully recovered without treatment in most cases, while a small number of patients may be left with permanent facial damage. Facial neuritis, if not fully recovered, is often accompanied by deepening of the nasolabial folds on the affected side, the corners of the mouth are pulled back toward the affected side, and the eye slits are narrowed.