Patients with cerebral infarction who have a cough are experiencing the symptoms of respiratory infection. Patients with cerebral infarction have reduced activities and are bedridden, and some patients are unable to get up and move because of paralysis, resulting in a weakened cough reflex and poor sputum excretion ability, which can easily lead to pneumonic pneumonia. If the patient’s cerebral infarction involves the medulla oblongata, or if there is infarction in both cerebral hemispheres and pseudo-medulla oblongata paralysis can occur, it is easy to choke on water and have difficulty swallowing, resulting in water as well as food residue, which can easily enter the respiratory tract and cause aspiration pneumonia. Both of these conditions may cause lung infection in patients, and after infection, patients will have cough and sputum, and in severe cases, they will have fever and difficulty in breathing. Another condition is that the patient has a throat infection because of poor resistance after cerebral infarction, and will have mild irritation and choking symptoms. In this case, it is necessary to improve chest CT or orthopantomograph examination of the chest to clarify the diagnosis. If it is a simple upper respiratory tract infection, no special treatment is needed for the time being, we can give enhanced care, promote sputum discharge, and Chinese medicine to regulate; if lower respiratory tract infection occurs, we need to improve the sputum culture plus drug sensitivity test, and use antibiotics in a targeted way.