Both left and right lungs have effusion need to identify the cause and then symptomatic treatment, usually related to lung infection, tuberculous pleurisy, cardiac insufficiency, etc., with drug treatment. 1. Lung infection: lung infection will involve the pleura, causing inflammatory reaction of the pleura, producing exudation and causing effusion, which can be adapted to antibiotic treatment, such as amoxicillin capsule. 2. Tuberculous pleurisy: Tuberculous pleurisy may also cause fluid accumulation in the lungs and can be treated with pyrazinamide. 3. Cardiac insufficiency: Cardiac insufficiency can manifest as bilateral effusions and in some cases pericardial effusions, which can be treated with tolvaptan tablets. If there are effusions in both lungs, it may be related to other diseases such as lung cancer. It is recommended to go to the hospital for examination to find out the cause of the effusion and use the medicines under the guidance of the doctor, and follow the doctor’s instructions.