In a recent study published in the journal Lancet Infectious Disease, researchers found that the herb Echinachia does indeed help reduce the risk of catching the common cold and that it can lower the number of days with a cold.  Now the study isn’t flawless as it uses a statistical technique called meta-analysis, it does indicate a possibility that this common herb may be beneficial to those who’s immune system isn’t up to snuff.

A word of caution here, this herb may be contraindicated in people with autoimmune disorders like lupus, rheumatoid arthritis and multiple sclerosis. Because of that I recommend that you go see a good naturopath who is familiar with the use of herbs.