For left-sided facial palsy, patients with facial neuritis can be treated with hormones, which mainly eliminate edema of the facial nerve and promote the recovery of the demyelination of the facial nerve; for nerve nutrition, patients can be given intravenous drugs such as B vitamins and miconazole, or intramuscular injections of rat nerve growth factor; to improve the blood supply to the nerve, patients can be given sedative doses of salvia To improve the blood supply to the nerves, the patient can be given drugs such as Danshen and Chuanxiongzin; for antiviral treatment, oral ganciclovir can be given for three weeks. In addition, treatment with acupuncture and physical therapy can be used. If available, patients can also undergo hyperbaric oxygen therapy. The face must be kept warm when going out, not to suffer directly from cold wind blowing, and the air conditioner is not allowed to blow directly on the face indoors.