1, scar hyperplasia is not suitable for surgery. 2. Patients with acute and chronic otitis media should be treated with middle ear first, and then operated after the inflammation is controlled or cured. 3. Bilateral auricle plastic surgery should be completed in one operation. 4. Don't press the ear in the near future after operation, so as not to break the suture. Antibiotics are usually used 3-5 days after operation, and the dressing can be opened and stitches removed about 10 days after operation. 5. Avoid irritating foods, such as ginger, raw onions, raw garlic, peppers and seafood.