As Hong Kong transitions between seasons, the local community often faces a surge in respiratory discomfort. Dr. Leo Cho, a prominent practitioner and Vice Chairman of the Hong Kong Association of Traditional Chinese Medicine, recently shared a comprehensive guide on diagnosing and treating various types of coughs. By analyzing factors such as phlegm color and environmental triggers, Dr. Cho offers a roadmap for recovery through acupressure, dietary adjustments, and specific herbal soups.
Understanding the Roots of Respiratory Irritation
A cough is more than a simple reflex; it is a complex response to environmental shifts or post-infection recovery. Dr. Cho explains that the transition from winter to spring—marked by a move from dryness to high humidity—is a common trigger. Furthermore, lifestyle choices like consuming spicy foods can irritate the throat and bronchial tubes. In many cases, a lingering cough persists after a common cold or viral infection due to post-nasal drip, where excess mucus travels to the trachea, stimulating the coughing reflex.
While an acute cough typically resolves within a few weeks, chronic cases can last months, particularly in elderly individuals. Distinguishing between different types of coughs is crucial for effective treatment in Traditional Chinese Medicine (TCM).
Classifying Coughs: Symptoms and Phlegm Color
TCM identifies four primary categories of coughs: Cold, Heat, Dry, and Deficient. A significant diagnostic tool is the appearance of phlegm:
- Cold Cough: Usually accompanied by clear or white, watery phlegm; often triggered by cold weather.
- Heat Cough: Characterized by thick, yellow or green mucus, often paired with a sore throat.
- Dry Cough: Little to no phlegm, often with an itchy, parched throat.
- Deficient Cough: A weak, persistent cough common in the elderly or those with compromised immune systems.
Targeted Herbal Remedies and Soups
To address these variations, Dr. Cho recommends specific functional beverages tailored to each condition:
- For Dry Coughs (Lily Bulb and Pear Water): Pears are renowned in TCM for moistening the lungs. Boil one pear with 9 grams of lily bulbs to soothe a dry, parched throat.
- For Heat Coughs (Monk Fruit/Luo Han Guo Water): This fruit clears internal heat. Rinse one monk fruit, crush the shell, and simmer for 15 minutes to reduce inflammation.
- For Cold Coughs (Ginger and Bitter Apricot Seed): Ginger provides warmth to soothe sensitive airways. Boil 6 slices of ginger with 9 grams of bitter apricot seeds (must be cooked to remove toxins) to dispel “cold” energy.
- For General Lung Health: A balanced soup featuring Codonopsis (党參), Atractylodes (白朮), and Poria (茯苓) can strengthen the spleen and lungs while effectively resolving phlegm.
Acupressure and Common Myths
For immediate relief, Dr. Cho suggests stimulating specific acupoints. The Hegu point (LI4), located in the web between the thumb and index finger, can be massaged to suppress coughing. For the Tiantu point, located at the base of the throat, he recommends applying heat (such as a warm ginger slice) rather than pressure.
Addressing a common misconception, Dr. Cho clarifies that while honey is excellent for lubricating a dry throat caused by excessive speaking, it may be counterproductive for those with heavy phlegm, as the sugar can occasionally increase mucus production.
By identifying the specific nature of a cough and applying these targeted TCM principles, residents can better navigate the seasonal shifts and maintain long-term respiratory health.