Pneumonia patients with itchy chest should still consider that the patient itself has a strong inflammatory response, the inflammation belongs to the active phase, the lung mucosa appears significantly congested, edematous, and there is exudation of inflammatory secretions. Common infections are seen in purulent bacteria such as Staphylococcus aureus, Klebsiella, Pseudomonas aeruginosa, etc. Also seen in other such as fungal infections. In this case, these pathogens will cause a large number of inflammatory factors in the lung mucosa, which will stimulate the lung mucosa with an itching sensation, even accompanied by coughing, coughing and chest tightness.