Open wechat. Click me. Click to pay. Click Medical Health. Then click on mine. In the page that opens, click on the shortcut link of national medical insurance electronic and voucher. Then open the details page and click the setting item of unbinding. In the pop-up prompt of unbinding medical insurance electronic certificate, we click the unbinding button. Open wechat. Click me. Click to pay. Click Medical Health. Then click on mine. In the page that opens, click on the shortcut link of national medical insurance electronic and voucher. Then open the details page and click the setting item of unbinding. In the pop-up prompt of unbinding medical insurance electronic certificate, we click the unbinding button.