What are the differences between heat-induced cold and cold-induced cold?
The main differences between heat-type cold and cold-type cold are reflected in etiology and pathogenesis, typical symptoms, prevalent seasons, susceptible populations, and treatment principles. If symptoms such as persistent high fever, difficulty breathing, or worsening conditions occur, prompt medical attention is necessary.
1. Etiology and Pathogenesis: Heat-type cold is mostly caused by external wind-heat pathogens invading the lung and defensive systems, leading to impaired lung function and failure of lung qi to disperse properly. Cold-type cold, on the other hand, results from external wind-cold pathogens binding the muscles and skin, also impairing lung dispersion. The natures of the pathogenic factors involved in these two conditions are entirely different.
2. Typical Symptoms: Heat-type cold commonly presents with high fever, mild aversion to wind, sore and swollen throat, cough with yellow phlegm, dry mouth, and throat pain. Cold-type cold is characterized by severe chills, mild fever, absence of sweating, nasal congestion with clear runny nose, and cough with white phlegm.

3. Prevalent Seasons: Heat-type cold frequently occurs during summer and early autumn when temperatures and humidity are high, whereas cold-type cold is most common in winter and early spring—cold, dry seasons or periods of sudden temperature drops.
4. Susceptible Populations: Heat-type cold tends to affect individuals with a naturally warmer constitution, those who frequently stay up late, or people who consume spicy and greasy foods. Cold-type cold more easily affects individuals with a cold constitution, inadequate warmth, or weakened immunity due to excessive fatigue.
5. Treatment Principles: The treatment for heat-type cold focuses on releasing the exterior with cooling herbs and clearing heat to detoxify, requiring medications that疏散 wind-heat. In contrast, cold-type cold is treated primarily by releasing the exterior with warming herbs and dispersing cold to restore lung function, necessitating the use of herbs that dispel wind-cold.
Nursing care should include ensuring adequate rest, avoiding physical strain, drinking plenty of warm water to maintain hydration, eating light and easily digestible foods, avoiding spicy, raw, cold, and greasy foods, maintaining indoor ventilation, and appropriately adjusting clothing according to the condition to support recovery.