สวัสดีค่ะ คุณแม่ลองศึกษาตามนี้ได้เลยนะคะ
https://th.theasianparent.com/%E0%B9%84%E0%B8%A7%E0%B8%97%E0%B9%8C%E0%B8%94%E0%B8%AD%E0%B8%97-white-dot-%E0%B8%9B%E0%B8%B1%E0%B8%8D%E0%B8%AB%E0%B8%B2%E0%B8%9B%E0%B8%A7%E0%B8%94%E0%B9%80%E0%B8%95%E0%B9%89%E0%B8%B2%E0%B8%82%E0%B8%AD%E0%B8%87%E0%B9%81%E0%B8%A1%E0%B9%88%E0%B9%83%E0%B8%AB%E0%B9%89%E0%B8%99%E0%B8%A1