I live in Canada, we have here up to -30 degrees Celsius in Winter. Many years ago I also had problems with cold and flu but these days are gone. A few years ago my friend from Russia sent me a generator to make silver water at home. Silver is the best natural antiseptic and antibiotic! My family and I drink this water and never get flu anymore! Don't lose your time lying in bed with headache, buy bottled silver water, or better this generator as I already tried it myself (you never know what they sell in these bottles, I feel more comfortable when I make the silver water myself!). I just searched the web, now it's possible to get it right from Russia and it's much cheaper than it was 2-3 years ago when my friend shipped it to me: http://www.ruthings.com/ionizer/ .