Extrapleural thoracoplasty is a procedure in which a group of ribs is removed under the periosteum to collapse the local chest wall in order to shrink the chest cavity in that area. The new ribs from the periosteum 6 to 8 weeks after surgery will keep the local chest wall collapsed and shrink the chest cavity forever. Thoracoplasty is commonly used for chronic abscess thorax. Factors such as untimely treatment or inappropriate management of acute abscess chest, residual foreign body in the chest cavity, failure to cure the primary disease causing abscess chest or specific infection can lead to chest wall collapse. Because the disease is a serious wasting disease, timely treatment and nutritional supply should be ensured. Patients with chest wall collapse are advised to eat a light diet, foods rich in vitamins and calcium, and nutritious foods. The following foods are recommended to be eaten appropriately: 1. Fruits Apples contain a large amount of vitamin C, which is a good health food. 1-2 per day. 2, millet porridge In addition to the rich iron, millet also has protein, complex vitamin B, calcium, potassium, fiber, etc.. 3.Soy milk is rich in calcium and high quality protein. Drink in moderation.