The omicron strain does not have a worst fear, but it can usually be inactivated by heat and alcohol, and can be treated with antiviral therapy, immunotherapy, and other treatments for omicron infections. 1. Inactivation by heat and alcohol: For viruses remaining on clothing, 75% alcohol concentration can inactivate their proteins, thus inactivating the omicron strain. It can also be inactivated at 56℃ for about 30 minutes. 2. Antiviral treatment: Ordinary or mild patients infected with Omicron virus can follow the doctor’s instructions to apply ritonavir tablets, as well as ambavizumab, lomivizumab injection and other monoclonal antibodies for antiviral treatment. The neutralizing antibody binds to the omicron virus and can block the entry of the virus into the cells and remove the virus from the body. 3. Immunotherapy: For patients with severe and critical infections, glucocorticosteroids such as dexamethasone injection and methylprednisolone injection should be used as prescribed by the doctor to carry out immunotherapy so as to inhibit the occurrence of inflammation in the lungs. Virus suppression therapy with interleukin inhibitors is also indicated. If there is any infection of the Omicron strain, it should be reported promptly and isolated under the supervision of a doctor in order to avoid delaying the disease.