Pulmonary fibrous streaks is a common description on the chest imaging report, which is usually an old lesion left after the cure of pneumonia or tuberculosis, and usually does not need treatment. If you have cough and other symptoms, consider the existence of interstitial lung disease, mainly drug treatment, if necessary, consider surgical treatment, the use of drugs in accordance with medical advice. If the interstitial lung disease is caused by bacterial infection, you can choose anti-infective antibiotic drugs for treatment, such as cefixime and so on. If the interstitial lung disease is caused by mycoplasma infection, you can choose macrolide antibiotics for treatment, such as roxithromycin. If the interstitial lung disease is caused by viral infection, you can choose antiviral antibiotic drugs, such as ganciclovir. If the interstitial lung disease is caused by autoimmune disease, glucocorticoids can be chosen for treatment, such as methylprednisolone. If glucocorticoid therapy is not effective, immunosuppressants can also be chosen for treatment. If there is fibrosis in the lungs, anti-fibrotic drugs, such as colchicine, should be taken under medical supervision. If the interstitial lung disease develops to the advanced stage, lung transplantation should be considered to improve the condition and prolong the patient’s survival. If you find pulmonary fibrotic cord shadows, you should seek medical advice from a professional doctor.