There is a folk custom of boiling eggs with shepherd's purse. It is said that after eating eggs cooked with shepherd's purse, the waist and legs do not hurt and the head does not hurt in a year. It originated from a beautiful legend: during the Three Kingdoms period, the famous doctor Hua Tuo encountered heavy rain one day while collecting medicine, and took shelter in an old man's home. Seeing that the old man had a headache, dizziness, pain and embarrassment, Hua Tuo diagnosed the old man, and picked a handful of shepherd's purse in the old man's garden and asked the old man to take juice and boil eggs to eat.

The old man obeyed, took three eggs and recovered. After the story spread, people followed suit. Because Hua Tuo treated the elderly on the third day of March, on the third day of March, boiled eggs with rice dishes gradually spread and formed a custom.

Ground vegetables are known as "licorice in vegetables", and eggs are rich in protein and other nutrients. Boiling eggs with ground vegetables is both delicious and healthy. Dimi vegetable, also called shepherd's purse, is a wild vegetable, but it is rich in nutrition, containing a lot of carotene, B vitamins and vitamin C, and the content of calcium and iron is also relatively high, which has the effects of clearing away heat and stopping bleeding, clearing the liver, improving eyesight, diuresis and detumescence.