How long does it take to recover from influenza B?

The recovery time for type B influenza (influenza B) varies depending on individual differences, severity of illness, and the presence of complications. For patients with good physical health and no complications, antiviral medications such as oseltamivir phosphate capsules or amantadine hydrochloride granules are typically prescribed under medical guidance. The virus gradually disappears within about one week, and the body recovers accordingly. However, for patients with poor physical condition or underlying diseases and complications—such as bronchitis or bacterial pneumonia—the course of illness is significantly prolonged. These patients require continuous medication under medical supervision, and recovery may take anywhere from two weeks to 30 days, depending on the severity of the condition and the patient's overall health status.