Get one tsp of fresh onion juice, adminster to anyone with a sore throat and/or flu like symptoms. Be forewarned that when the fresh onion juice comes in contact with the bacterium in your throat it will smart for about 3 seconds, then it's gone. You are actually feeling the death of the bacterium. Two doses 12 hours apart, one tsp each dose usually ends a sore throat/flu in that period of time. You can have nothing to eat or drink for 5 minutes and then you are go do go. Because both colds & flu usually start in the throat, if you take this precaution at the first sign of a sore/scratchy throat you will not get sick.
Because onions mutate at the same time and pace as the bacterium in your environment, you never actually get immune to onion therapy. That leaves the only consideration if you happen to be allergic to onions.
If we can train our children and the general public in this knowledge we can stop colds & flu in it's tracks with what you already have in your kitchen.
UPDATE: We have been having a technical issue with our ordering platform that should thankfully be RESOLVED now. Please call us if you experience any problems placing your orders, and thank you so much!