Fibrosis foci in the middle lobe of the left lung and the upper lobe of the right lung are mostly seen in lung infection, unabsorbed pneumonia, tuberculosis, etc. The main treatments include general treatment and drug treatment. 1. Lung infection: when there is bacterial infection in the lungs, it will lead to fibrosis in the lungs, at this time, we should actively carry out anti-infection treatment, such as the use of penicillin drugs such as amoxicillin, benzylpenicillin and so on to carry out anti-infection treatment. At the same time, you should rest and drink water to improve your resistance. 2. Tuberculosis: pulmonary fibrosis caused by tuberculosis should be actively carried out anti-tuberculosis treatment, such as the use of drugs isoniazid, rifampicin and so on. 3. Pneumonia, tuberculosis old foci not absorbed: if pneumonia, tuberculosis is not cured in time, may leave old foci, at this time will also lead to the occurrence of pulmonary fibrotic foci, if there is no symptom of infection can be left untreated. Fibrous foci in the lungs, it is recommended that early standardized treatment to reduce the adverse effects of the disease. The above drugs need to be used under the guidance of a doctor, avoid self-medication.