Onion white water has an improving effect on cold and runny nose caused by wind-cold, but it should be combined with other medicines under doctor’s guidance for comprehensive treatment. The flavor of scallion white is pungent and warm in nature, its a Chinese medicine, it has the effect of sweating, relieving the surface, but also disperses cold and passes Yang. It is useful for wind-cold cold, in addition to treating yin toxicity and abdominal pain, yang dehiscence and face redness. Scallion white water is useful for runny nose caused by wind-cold cold, but a single Chinese medicine can not be used as a treatment plan, you should go to the hospital in time to see a doctor, to clarify the cause and then give targeted treatment. Adverse effects of scallion white is not clear, table deficiency sweating people should be used with caution. Do not eat spicy, stimulating food. If you need to use medication, it is recommended to use under the guidance of a Chinese medicine practitioner, individuals should not use blindly, so as not to cause adverse consequences.