How many days of anti-inflammatory injection is needed for pneumonia depends on the patient’s age, clinical symptoms and whether there are any complications. Pneumonia is a relatively common disease in the clinic, mainly bacterial infection, the clinical manifestations are high fever, cough, coughing up pus sputum, chest pain, and some patients with more serious conditions will have infectious shock, respiratory distress, respiratory failure and other manifestations. Lung anti-inflammatory is based on the results of sputum culture to choose sensitive antibacterial drugs, in the clinic can be empirical selection of penicillin, such as amoxicillin, meloxicillin, can also choose cephalosporins, such as ceftriaxone, ceftazidime, or use of respiratory quinolones, such as moxifloxacin, levofloxacin, it is recommended that the lungs can be reexamined after 5-7 days of CT, to see whether the lungs are infected with foci absorbed better.