My understanding is all asthma is a product of parasitic infection. So a modest natural remedy may be a teaspoon organic turpentine daily (listen to Dr. Jennifer Daniels on a variety of YouTube or podcasts) or an appropriate dose of ivermectin. Sunshine sweating and cold immersion can help get the parasites cleared from the lungs. Wim hoff breathing technique over a stretch of time is amazing and free. The top top top health product in my opinion is the aquacure by George wiseman. Try to watch any of his many YouTube videos or podcast interviews. This has worked wonders on my parents. I knew it would be beneficial but seeing my parents month by month surprised me. Essentially it's bioavailable human fuel and is reversing all kinds of conditions. Daily Sunshine bathing , habitual breath exercises, and clean spring water,nature exposer cannot be over emphasized and 12 cell salt mineralization. God bless and best of luck!!! And avoid medical doctors at all costs, unless you want to have them curse you with their dogmatic scientism.