In addition to using drugs, you can consume food in daily life to expectorate phlegm through dietary supplements. In daily life, common expectorant foods are as follows: First, consume more fresh vegetables and fruits to give the organism a large amount of vitamins, such as citrus fruits, cantaloupe, kiwi, tomatoes, broccoli, pears, etc. Second, replace the daily cooking food oil with olive oil, which contains a large amount of unsaturated fatty acids and can produce effects similar to those of anti-inflammatory drugs. Third, appropriate daily consumption of nuts, plant-based seeds of food and fish, these foods contain essential fatty acids that can help reduce inflammation and phlegm, such as the consumption of salmon, tuna, walnuts, flax seeds, pumpkin seeds, herring, lake trout, etc. Fourth, you can drink honey water, which contains phlegmolytic substances that dilute the phlegm and make it easier to cough up.