There are two major categories: "taking qi to dispel the valley" and "taking medicine to dispel the valley".　　(a) "Serving qi to dispel the grain" means to serve qi and dispel the grain, and to serve qi as the basis, through serving qi to achieve the purpose of dispelling the grain. Some advocate that at the beginning of taking qi, the person should take qi, drink one or two cups of houma soup or crispy soup when hungry, or one or two cups of wine, and drink only clear water when thirsty. Some advocate reducing food gradually at the beginning of qi service, reducing food by one mouthful per day, and then reducing it to ten days and cutting off all food. Some advocate that one should not force oneself to break off the grain, but wait until one has served qi for three years, then one will break off the grain naturally. Specific methods can be found in the books of qi method of various schools, according to the article "Holding Park Zi Nei Zhang - Miscellaneous Ying", namely, there are food twelve hours of qi method, food year star qi method, food six wu essence of qi method, think about the God food qi method, and so on.　　(ii) "Taking medicine to dispel the grain", i.e., taking medicines to replace the grain food. There are a lot of medicines, some of which are high in nutrition and slow in digestion, such as beans, jujube, houma (sesame), chestnuts, crisps, and Poria, Huangjing, asparagus, art, ginseng, honey, etc., and then make pills and creams, and then take a pill or two orally after cutting off the cereal grains in place of cereal grains. There are recipes that take highly nutritious but difficult to digest things, and after a full meal, the grain will be cut off, and the grain can be cut off for a very long time. There are also some who make gourmet food and then take medicine to nourish what they have eaten, and it is said that they can avoid the valley for three years. There are also those who boil specific stones with herbs and medicines and use the stones as food. The specific prescriptions can be found in the "Tai Qing Jing Grain Breaking Method" and the "Yun Shu Qi Zhi Zang - prescription and medicine department".