The above-mentioned case is considered to be pneumonia, and we need to further improve the blood routine, C-reactive protein, mycoplasma antibody, virus antibody, sputum culture and other related tests. If the patient’s blood count indicates that the white blood cells, neutrophils and neutrophil percentage are normal, and the C-reactive protein and calcitoninogen are also increased, the patient should be treated with antibiotics such as amoxicillin, cefixime, azithromycin, etc. If the patient’s blood count indicates normal or below normal white blood cells, increased monocytes, increased or decreased lymphocytes, and normal C-reactive protein and calcitoninogen. In this case, we consider it as a viral infection and need to use antiviral drugs such as oseltamivir and busulfan. If the mycoplasma antibodies are more than 4 times elevated recently, then we consider the infection as atypical pathogenic bacteria and need to use macrolide antibiotics or quinolone antibiotics, such as erythromycin, levofloxacin, etc.