inhalers might help open airways to the lungs- at least it will help with inflammation to help reduce swelling, but really, that won’t do much if any good i would think in the lungs where the lungs are being destroyed- A Neubilizer would be the best I would think-
On inhalers and nebulizers, steroids decrease immune responses in people. I don’t know whether or not those drugs would be prescribed or continued during a pneumonia treatment for COVID—19.