The treatment of parainfluenza virus is mainly based on antiviral treatment, you can choose oseltamivir, acyclovir, busulfan anti-inflammatory oral solution and other drugs, as well as active symptomatic treatment. If there are manifestations of fever and cough, you can use anti-fever and anti-cough drugs to improve the symptoms. If the patient is considered to have a combined bacterial infection through clinical symptoms and related tests, sensitive antibiotics can be selected for treatment based on bacterial culture and drug sensitivity test results. Parainfluenza virus infection can cause recurrent upper respiratory tract infections, and can also lead to lung infections in some patients, so once the diagnosis is confirmed, active symptomatic treatment is needed to relieve symptoms.