Generally speaking, patients with cough and phlegm can choose exocarpium citri grandis, and middle-aged and elderly people can take exocarpium citri grandis for long-term cough or asthma. People who smoke and drink can also eat dried tangerine peel, which is the most harmful to the lungs, stomach, liver and throat. At the same time, people living in urban cars and industrial waste gas can also eat dried tangerine peel, which can easily lead to habitual respiratory infection and inflammation if inhaled for a long time. People who often dine together should take exocarpium Citri Grandis, which has a good effect on the digestion of the stomach and can relieve the digestive pressure in the stomach after meals. However, people with qi deficiency and yin deficiency and dry phlegm should not take it.