Hi @Collin S Magnuson , asthma medicines reduce swelling inside the airways, relax muscles that tighten around the airway and reduce excess mucus that clogs the airways. They actually reduce or stop these changes in your airway from happening, but unfortunately do not strengthen them. Taking your medications as prescribed is key to helping your asthma stay under control even when you get an infection or virus. When people without lung disease get a respiratory infection, asthma treatments...