I use Reishi/Ling Zhi instead of using an inhaler. I only need to do that during 4-6 weeks in the spring whilst the tree pollen is out. It also helps massively with my hayfever. Since doing this each year (keeping down inflamation and opening the lungs) I haven't had to use any other medication. I simply have it as a tea, up to 3 times a day. Check with a Chinese medicine practitioner to understand doses though!