@laughtrack
That pine needle tea sounds like a winner of a remedy. I read that the Douglas Fir pine needles are about the best ones and they happen to be popular Christmas trees too.
I have some other modalities for prevention in mind instead. There's the sinus rinse and gargle with saline and a small amount of povidone iodine (from Dr. Peter McCulloughs discussion on the Bangladesh study), There's the nebulized saline with food grade hydrogen peroxide according to Dr Mercola, or use Dr. Jon Kaiser's instructions on Youtube. Both are very cheap and easy. Another couple resources that might be more difficult to get is Ivermectin, or chlorine dioxide solution.