Coughing for two months, need to consider the various systemic diseases caused by the common respiratory system, can test the blood routine, take a double lung X-ray or CT, or even MRI. If necessary, you can take the respiratory secretions, do the culture of pathogens as well as drug sensitivity test to clarify the cause and condition. If it is a bacterial infection of the lungs, you can choose to use penicillin, amoxicillin, cefoperazone, sulbactam sodium, azithromycin, erythromycin, lomefloxacin, clindamycin and other medications to treat it. If it is a fungal infection of the lungs, you may choose to treat it with medications such as amphotericin B and ashwagandha. If it is caused by Mycobacterium tuberculosis infection in the lungs, drugs such as isoniazid, rifampicin, ethambutol, pyrazinamide, streptomycin, and levofloxacin can be used in combination, and drugs can be used with the principles of early, combined, whole course, appropriate dosage, and regularity of treatment. Symptomatic treatment of cough and phlegm, you can choose to take carboxymethylstein oral solution, aminoglutethimide syrup and so on.