Someone once told me Oregano oil will burn out any illness. It is not for the fainthearted– you need to put it in water before drinking, but it will burn as it goes down.
Remember the SARS issue in Canada some years ago? They found that those who ate sauerkraut had greater resistance, and if they did get sick, the virus lasted a shorter time. Today we know it’s because of the variety of microbiota in the gut for those who eat fermented food (or play in the dirt ala JJ!)
I’ve tried not getting the flu shot the last several years and taking a thieves tonic. A few weeks ago I chopped up horseradish root, turmeric root, ginger root, jalapeños, garlic, rosemary, and added peppercorns to the mix. I put that in a mason jar and poured apple cider vinegar with the mother over it. I let it sit for a month, turning it over occassionally, then start taking a tablespoon a day during the winter. So far, so good over the last few years. Avoiding illness in the first place keeps me off the antibiotics because there are no secondary infections to treat.