A simple recipe to start you all off on your search for herbal treatment if you're brave!!!
anti viral/antibacterial cough syrup;
small red onion chopped very small
5-6 fat garlic cloves- chopped up (not crushed)
put both into a clean jam jar and add standard table sugar to the same level (ie 1 inch of onion/garlic to 1 inch of sugar). Stir thoroughly and put on the lid. Leave overnight and squeeze out all the syrup. I find a good heavy spoon and a plastic sieve seem to be the best. You'll get a bizarrely large amount of syrup which tastes spicy, but not unpleasant.
Take a teaspoon of syrup as many times as you want during the day

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It can shift a cold in just over 24 hours, but you'll need to continue to take the syrup for the following day too
Good luck!