I don't know if this is in the book your working with, but MYRRH is cytokine inhibitor. Don't know the dosage, etc.
I always keep a little on hand in the event we have another pandemic like the 1918 outbreak.
Seems that most of the people died not from the flu, but from the cytokine storm. So researched and found out about myrrh. Figure I would mix a little of the resin with alcohol (vodka) if I were to come down with something that killed vka cytokine storm.
Claude, I would encourage you to go ahead and make a tincture with it now - tinctures can last 10 - 15 years if stored properly!
I've been using a 4 thieves tincture that I made, as these herbs were first used around the time of the plague, and they do have specific actions that indeed back up the claim that it was protective of those grave robbers so they didn't get the plague. I believe it's what has saved me from not only this horrid flu this year, but possibly other illnesses I would have gotten otherwise.