Greetings, I will be more than happy to give you an answer. Echinacea, which is safe for most people( except for those with immune disorders ), works great as cold prevention.
Zinc is also effective but as a short term treatment and it blocks the cold cells. Ocillococcinium which is extracted from
duck liver decrease symptoms for the half people who use it in only 24 hours. It looks like a commercial but everything I said here is truth. That is about all I know considering this subject.
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