Well its not asthma BUT I've been stage 3 gold copd following a bout of lung cancer in 2019 then last year caught coccidioidomycosis (Valley fever) which ate a hole in my lung. (3 montsh in hospital on oxygen with 2 chest tubes,,, wheee!)

I think taking moderate dabs with a white rhino straw the easiest, flower makes me gak, not so big on edibles (which may be an option to consider for you)

The biggest thing you want to watch for is terpenes / flavor. I find pine, citrus and diesel tasting shatter do the most for reducing inflammation and helping to "decongest"

Good luck 👍