HONG KONG – As Hong Kong transitions between seasons, shifting temperatures and humidity often trigger respiratory symptoms, including persistent coughs and sore throats. Traditional Chinese Medicine (TCM) practitioner Dr. Cho Yan Yan (曹信恩) recently provided a comprehensive guide focusing on the root causes of coughing and presenting several tailored dietary remedies and acupressure techniques to promote lung health and alleviate discomfort. This guidance offers actionable, holistic strategies for residents navigating changes in local climate and environmental triggers.
Coughing, a common ailment, can stem from various sources, including external irritants, sudden shifts in humidity—particularly the transition from dry winter air to the moist conditions of spring—and dietary factors such as consuming overly spicy foods which irritate the pharynx and airways. Furthermore, post-viral or bacterial infections often lead to post-nasal drip, where excess mucus irritates the trachea, sustaining the cough reflex. While most acute coughs resolve within a few weeks, Dr. Cho noted that some individuals, particularly the elderly, may experience chronic coughs lasting six months to a year.
Identifying Cough Types and Phlegm Indicators
Accurately diagnosing the nature of the cough is central to effective TCM treatment. Dr. Cho explains that diagnosis involves classifying the cough and assessing the color and consistency of any accompanying phlegm, which indicates the underlying imbalance.
TCM categorizes coughs into four main syndromes:
- Cold Cough (寒咳): Often characterized by clear, thin phlegm.
- Heat Cough (熱咳): Typically involves thick, yellow, or deep-colored phlegm.
- Dry Cough (乾咳): Lacks significant phlegm production, often accompanied by a dry throat.
- Deficiency/Excess Cough (虛盛咳): Reflects weakened organ systems (deficiency) versus acute pathological changes (excess).
The color of phlegm is a critical diagnostic tool; for instance, clear phlegm generally suggests a cold origin or dampness, whereas yellow or green phlegm often points to heat or infection.
TCM Dietary Interventions for Respiratory Relief
Dr. Cho emphasized the therapeutic power of tailored Chinese soups (tāng shuǐ) for both symptomatic relief and underlying constitutional support. He recommended specific recipes based on the classified cough type:
1. General, Lubricating Coughs: Lily Bulb and Pear Water
Suitable for mild, general dry coughs and throat dryness, this simple decoction uses the lung-moistening properties of lily bulbs (百合) and pears (雪梨).
2. Heat-Type Coughs: Monk Fruit (Luo Han Guo) Water
For coughs associated with heat, this remedy is favored because monk fruit is renowned for its cooling and throat-soothing qualities. Caution is advised against using warming ingredients like ginger, which can exacerbate heat-related symptoms.
3. Cold-Type Coughs: Ginger and Bitter Apricot Seed Decoction
Ginger’s warming properties are beneficial for quieting airway sensitivity typical of cold-type coughs. The addition of bitter apricot seeds (苦杏仁) requires boiling to neutralize natural toxins, ensuring safe consumption while assisting in lung function.
4. Comprehensive Spleen and Lung Fortification Soup
For long-term health, Dr. Cho introduced a balanced formula aimed at strengthening both the lungs and the digestive system (spleen/stomach), which TCM views as interconnected. This soup, useful for chronic coughs or post-illness recovery, includes ingredients like codonopsis root (黨參), atractylodes (白朮), poria mushroom (茯苓), and dried tangerine peel (陳皮).
Acupressure Points and Therapeutic Misconceptions
In addition to dietary adjustments, Dr. Cho highlighted two key acupoints for temporary relief. Tian Tu (天突穴), located in the suprasternal notch at the base of the neck, is best stimulated using heat treatments or medicated patches rather than simple pressure. He Gu (合谷穴), located on the hand between the thumb and index finger, is more amenable to direct pressure and can provide quick symptomatic relief.
Addressing a common misconception, the practitioner clarified the role of honey. While excellent for lubricating a dry throat and easing a dry, non-phlegmy cough—especially beneficial for those who strain their voices frequently—honey is not recommended for cases where excessive phlegm production (dampness) is already present.
Understanding the specific nature of a seasonal cough, through recognizing patterns of phlegm and other symptoms, allows individuals to utilize these time-tested TCM food remedies for effective and natural relief. Residents are encouraged to seek professional TCM consultation for chronic or severe coughs for personalized therapeutic strategies.