I'd like to buy some CS for the upcoming flu season. My kids are 4 and 18 mos. Can I give them CS at first signs of a cold or virus? How much should I give them and for how long? Also for myself. I've been wanting to try CS for an autoimmune condition I have, my basis of thinking is the theory that autoimmune disease is caused by infection of some sort. How much should I take and should I take long term? Thanks for any help you can provide.