The recovery time for bacterial infections is related to the type of infection and the severity of the disease, and cannot be generalized. Bacterial infections induce an inflammatory response from the body’s immune system. For patients with milder symptoms, the fever is usually around 2-3 days and the symptoms will gradually improve. However, for more severe infections, when the patient’s own immune resistance is low, the symptoms may last 1-2 weeks or even longer. In case of bacterial infection, if the type of infection is not clear for the time being, patients need to go to the hospital promptly and can be treated with broad-spectrum antibiotics, such as cephalosporins and penicillins. If the pathogenic bacteria are clearly identified, specific antibiotics can be used. In addition, it is recommended to strengthen physical exercise in daily life to improve their immune system. During the illness, pay attention to rest, eat more fruits, vegetables and high-protein diet, and avoid staying up late and straining.