Patients with neococcal pneumonia are able to drink water when their symptoms are mild, while severely ill patients are usually unable to drink water on their own. Mild patients may present with low-grade fever, mild malaise, and disturbances in smell and taste, with no signs of pneumonia. A few patients may have no obvious clinical symptoms after infection with novel coronavirus. Such patients are able to drink water as needed. Severe patients with new coronavirus pneumonia tend to develop symptoms such as dyspnea and hypoxemia about one week after the onset of the disease, and in severe cases, they may rapidly progress to septic shock, multi-organ failure, acute respiratory distress syndrome, metabolic acidosis, hemorrhagic coagulation dysfunction and other critical symptoms. At this time, patients can not drink water on their own, should be supplemented by other means of hydration, such as intravenous saline. Patients diagnosed with new coronary pneumonia should be isolated in a designated hospital for treatment, and most patients have a good prognosis. The general population should do a good job of personal protection, active vaccination. Tips] In this article, “new coronavirus pneumonia” and “new coronavirus pneumonia” have been renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.