My most recent case of COVID included lots of sinus drainage and a tight chest. I was taking a Mucinex product with Dextromethorphan to suppress cough, guaifenesin as an expectorant to thin the mucous and phenylephrine HCL as a nasal decongestion. Recently, I added a supplement containing sulforaphane. It is derived from cruciferous vegetables. The very day I took the first dose of sulforaphane, the tightness in my chest abated. I've taken it daily since and no more need for the Mucinex. Doctor Lynn Fynn had recommended sulforaphane to help the gut/lung "axis". Thus far, I'm getting good results.
where do you get the sulphoraphane?