3. Echinacea
You should be taking around 1000 milligrams two or three times a day of this particular supplement if you have a cold or flu. In fact, this is one of the supplements that you want to take as soon as you notice that you have any symptoms whatsoever.
Studies have found that Echinacea was able to treat respiratory tract infections in both over the long-term and over the short term without provoking the same resistance in the body as over-the-counter flu medication might.
This is also an anti-inflammatory substance that can help with flu and cold symptoms and you can find it anywhere that there is a decent selection of supplements. You can take this before you get sick, at the very first sign and it can also be effective after you’ve already gotten sick.