Double lung infection has been coughing because the inflammatory secretions stimulate the bronchial tubes to cause reflex defense action, the body can cough to clear the secretions in the respiratory tract, the need for active anti-infective treatment. Lung infection is more commonly caused by pathogenic microorganisms, pathogenic microorganisms can lead to bronchoalveolar inflammatory reaction, producing a large amount of inflammatory secretion, secretion stimulation of the bronchial tubes will appear cough. In addition to coughing and sputum symptoms, if the lesion involves the pleura, chest pain and other symptoms can also occur. Lung infections generally require active anti-infective treatment. If it is caused by bacterial infection, cefixime can be used to fight infection; if it is caused by mycoplasma infection, levofloxacin can be used to fight infection; if it is caused by viral infection, ribavirin and other antiviral treatment can be used. If cough and sputum symptoms are serious, oral aminobromine hydrochloride can be given to resolve sputum, and if necessary, acetylcysteine nebulization expectoration can be given. If the patient has double-lung infection, he should consult the doctor in time and cooperate with the doctor to carry out active and effective treatment, so as to avoid delaying the condition.