Hair is mainly warm food and medicine, such as beef and mutton, dog meat, venison, etc. These foods are very hot and not suitable for some patients. Commonly used are onion, ginger, leek, pepper, pepper, aniseed, and some patients eat it too spicy.
But lettuce is peaceful, sweet and cold. Lettuce is not a hair thing, so it is no problem to eat it normally. Are hair products related to diseases or drugs? If the hair products are not, you must not eat them. Patients with deficiency-cold need warm drugs, such as pepper and ginger, which need to be used. Not that you can't eat it, just see a doctor.