In the clinic, I often hear not only in spring but throughout the year that the throat feels scratchy and a cough lasts a long time. After days with high fine dust levels, some people also experience worsened runny nose, phlegm, eye irritation, and skin itching. The immediate discomfort is a problem, but we also need to consider that repeated irritation can wear down the respiratory mucous membranes.
Why Can Fine Dust Make a Cough Last Longer?
Fine dust particles are small, so they may not be sufficiently filtered by the nose and throat and can enter deep into the airways. In this process, if the mucous membranes become dry and sensitive, even mild irritation can easily trigger a cough reflex. People with rhinitis, asthma, or chronic bronchitis may feel stronger symptoms at the same concentration.
We Also Look at Skin and Overall Condition
The issue is not only irritation that enters through the respiratory system. Fine dust and yellow dust can dry the skin barrier and may worsen itching, atopic dermatitis, and allergic reactions. Various studies related to air pollution have reported associations between fine dust exposure and inflammatory responses and respiratory disease risk, so everyday management is needed.
Korean Medicine Care Centers on Mucous Membrane Recovery
In Korean medicine, when evaluating a respiratory system made sensitive by fine dust, we consider supporting lung qi, moistening dry mucous membranes, and calming heat sensations and inflammatory responses together. Based on principles such as supporting the lungs, moistening the lungs, clearing the lungs, and resolving phlegm, we check the cough pattern, the color and stickiness of phlegm, throat dryness, digestive status, and fatigue level.
For example, Cheongsangboha-tang and Geumsuyukgun-jeon can be considered for people with a long-lasting cough and low energy, while Gamgil-tang or Maekmundong-tang can be reviewed for throat discomfort and a dry cough pattern. Cheongin Yukwae-hwan, which is a more convenient form of the Gamgil-tang family, and Kyung-Ok-Ko, which is used in the direction of replenishing lung fluids, may also be options depending on constitution and symptoms. Regarding Kyung-Ok-Ko, research findings have been reported on changes in oxidative stress and the degree of lung tissue damage after fine dust exposure.
We Recommend a Consultation in These Cases
- When a cough lasts for 3 weeks or longer, or worsens at night
- When yellow phlegm, wheezing, or chest tightness repeatedly occurs
- When rhinitis and a sensation of something stuck in the throat persist together for a long time
- When skin itching or urticaria frequently occurs after fine dust exposure
- If you have difficulty breathing, chest pain, bluish lips, or decreased consciousness, you should call 119 or go to the emergency room first
The Simpler Lifestyle Management Is, the Easier It Is to Continue
- On days with high fine dust levels, reduce outdoor exercise and long outings
- When going out, use a mask that fits your face well, and wash your hands and face after returning home
- Drink small amounts of water often to reduce dryness of the throat and nasal mucous membranes
- Ventilate indoors briefly when concentrations are low, and clean in a way that does not stir up dust.
- If you are taking medication for asthma or allergies, do not stop it on your own; consult your medical team.
Managing fine dust is not only a concern on certain days. Habits that reduce exposure, together with care that checks the condition of your mucous membranes, may help reduce the repeated pattern of coughing and throat discomfort. If symptoms last, we recommend that you not simply put up with them, and instead check what kind of care fits your current condition.