A randomised controlled trial examining the effect of Korean medicine preventive treatment for fine dust exposure and respiratory symptoms, and a cohort study of residents in high-exposure areas, have been reported.

However, the surest thing is to reduce exposure. On days when the levels are high, keep the windows closed and wear a certified protective mask (one marked with a filtration grade) when going out.

Those with asthma or chronic cough often find symptoms flare in periods of severe fine dust. We adjust the consultation interval to match that period.