I've gone through the whole list of suggestions. I'm going to try the ones I've formulated into a list. I hope something works. I've been doing an hour and a half's worth of sinus and throat cleansing.

I oil pull, do eucalyptus oil aromatherapy, have ginger root tea with a pinch of slippery elm powder, take a mullein tablet, gargle warm saltwater, and use the Sinus Rinse. It used to work, but now it's become unreliable. What the hell, man? My vocals are based off of open throat technique. It's vital. Still, I haven't wanted to just use Mucinex. Yet. I'm starting natural. Good luck to everyone in my shoes