Buy big Yali pear or Gongli pear, cut off the head, but don't throw it away. Hollow out its heart, put it in a chicken heart shell (a kind of Fritillaria cirrhosa), cover the crushed bitter almond on the head just now, fix it with a toothpick, and stew it thoroughly with more water and crystal sugar. It won't hurt if you eat it twice for about an hour. It's very effective. Eating it often can maintain your throat well. I'm eating it myself ...