For a less invasive acute treatment, peppermint tea or oil can help to relax smooth muscles in the bronchial passages. (50) Care should be taken not to give too much (no more than 12 drops of oil), as it can also reduce the tone of the lower esophageal sphincter and contribute to acid reflux.
Subsequent wildfires can irritate the bronchial passages and lungs, thereby exacerbating chronic respiratory illnesses and increasing the risk for acute respiratory infection (e.g., bronchitis and pneumonia).
Dust particles 10 microns in diameter and larger are considered to be large enough to either be caught in the nasal passages, or brought back up out of the upper lungs by cilia, the hair-like media in the upper lungs and bronchial passages. Particles 2.5 micron and smaller are believed to settle in the lower area of the lungs.