1. Open Alipay app, click My in the lower right corner, and click the Settings icon in the upper right corner. 2. Click Privacy in Settings. 3. Click Authorization Management. 4. Click the authorized health code. 5. Click Cancel Authorization. Fill in your symptoms and body temperature carefully on the information filling page of epidemic prevention health information code, and click "Submit". 7 After submission, you can check your health code. When you need to show your health certificate, you can scan it when you show it.