Chronic inflammatory fibrous foci in both lungs are usually small and require no special treatment; if they are large, they can be treated with oxygen, drugs (budesonide, etc.), and lung transplantation . Fibrotic foci are produced by the repair of interstitial fibrous tissue after lung infection. Chronic inflammatory fibrotic foci suggest chronic lung infection. 1. Smaller area: If the fibrous foci are small in scope, they have no effect on the body, and the patient should pay attention to lung health care and observation and follow-up. 2. Larger area: If the fibrous foci are large in size, it will affect the lung ventilation function, leading to restrictive ventilation dysfunction, and in severe cases, respiratory failure. Treatment often requires oxygen therapy, the use of drugs, such as glucocorticoids (budesonide, etc.), anti-infective drugs (azithromycin, etc.), antifibrotic drugs (pirfenidone, etc.). In addition, severe pulmonary fibrosis is incurable and has a poor prognosis, and the most effective treatment for end-stage pulmonary fibrosis is lung transplantation. Chronic inflammatory fibrotic foci in both lungs should go to the hospital in time, and be actively treated under the guidance of the doctor, so as not to delay the condition.