Is it effective to consume water boiled with fermented soybean (douchi) and scallion whites during the early stage or the middle stage of a cold?

Diluted fermented soybean (douchi) boiled with scallion whites is more effective when taken at the early stage of a cold, particularly suitable for the initial phase of wind-cold type感冒. This dietary remedy can only help alleviate symptoms. If symptoms do not improve or worsen after 3 days of use, prompt medical attention is necessary to determine the underlying cause and receive proper treatment.

In the early stage of a cold, when wind-cold pathogens have just invaded the body, diluted douchi—being pungent and cool—can help release exterior pathogens, while scallion whites—being pungent and warm—can promote lung qi circulation. Used together, they assist the body in expelling pathogenic factors and relieving early symptoms such as chills, nasal congestion, and clear runny nose. At this mild stage, dietary intervention may help contain disease progression and prevent worsening.

During the middle stage of a cold, pathogens have penetrated deeper into the body and may be accompanied by worsening fever, cough, and phlegm production. At this point, simply using boiled douchi and scallion white is insufficient for treatment. Symptomatic medications are needed, and dietary remedies should only serve as supplementary support—not relied upon exclusively.

In daily care, ensure adequate rest to avoid fatigue that depletes vital energy, drink plenty of warm water to keep respiratory passages moist, maintain a light and easily digestible diet, avoid spicy and irritating foods, adjust clothing according to room temperature, prevent re-exposure to cold, and support the body’s recovery process.