Eat some enhanced resistance to strengthen the body's resistance to food, like mushrooms, honey, agaric, kelp, citrus, jujube, etc.

多吃一些增强抵抗力的食物，如蘑菇、蜂蜜、木耳、海带、柑橘、红枣等。

youdao

Bean curd with kelp, often eat in addition to disease.

豆腐配海带，常吃除病害。

youdao

In my childhood home, once the tofu had been eaten, it was the custom to cut up the succulent kelp and eat it, too.

WSJ: Kelp Wanted