How can patients with asthma avoid pollens?

Updated: Oct 07, 2019
  • Author: John J Oppenheimer, MD; Chief Editor: Michael A Kaliner, MD  more...
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Avoidance is difficult or impossible, but efforts to reduce exposure include closing windows and doors; using air conditioning and high-efficiency particulate air filters in the car and home; staying inside during the midday and afternoon, when pollen counts are highest; wearing glasses or sunglasses; wearing a face mask over the nose and mouth when mowing the lawn; and, if possible, vacationing in a different ecosystem during pollen season.

Pollen may increase sensitivity to other airborne allergens, possibly because its protease enzymes make epithelial membranes more permeable by disrupting their transmembrane adhesion proteins, according to a European study. [35]

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