Hair refers to foods that are nutritious or irritating, and are particularly prone to induce certain diseases or aggravate existing diseases. Such as leek, coriander, onion, ginger and so on.

Most fruits and vegetables, such as tomatoes, cucumbers, Chinese cabbage, wax gourd, bitter gourd, mung beans, coix seed, red dates, bananas, apples, watermelons, carrots, etc.