The practice of boiling water with white radish to relieve cough and resolve phlegm is relatively simple. It is generally recommended that white radish be washed and cut into pieces, and stewed in water. It is only suitable for coughs with phlegm-heat, and you should consult a medical professional if it is suitable for you to take it. As a medicine, daikon radish can eliminate stagnation, resolve phlegm-heat, lower qi, and relieve pain. It can be used to treat food stagnation (stagnation of food in the stomach due to indigestion) and flatulence, phlegm cough with loss of voice, vomiting of blood, epistaxis, thirst, dysentery, and migraine headache. Boiled water can relieve phlegm-heat cough and unfavorable throat. The common practice is to clean a white radish and cut it into your favorite shape, cubes, julienne, slices and so on. Add the right amount of pure water in the pot, boil over high heat and then turn to low heat to simmer, cook until the water becomes milky white and turn off the fire. To achieve better cough and phlegm effect, you can also follow the doctor’s instructions in the water added to the mother of Sichuan shellfish, Chen Pi, half-summers and other Chinese herbs with the effect of cough and phlegm, you can drink a number of times a day. The adverse reactions and contraindications of the above drugs are not clear. Patients are advised to consult a doctor if they feel unwell, and should not seek treatment on their own to avoid delaying their condition.