To treat blood deficiency with longan and American ginseng, the ratio of 100: 1, that is, 100g of dried longan meat and 1 g of American ginseng powder, are evenly stirred, put in a bowl, steam for four hours in a pot with low fire, then cool, cover with plastic wrap and put in the refrigerator. Take a spoonful of boiled water every day, drink water and eat longan pulp. After eating for about two months, blood deficiency should be cured. Longan meat is easy to get angry when eaten, and American ginseng with longan meat is heated by cold.