Get yourself to Boots. Buy some Echinacea Capsules. They'll be in the Herbal Remedies section, get the One-a-day capsules if they stock them (go to a big Boots) they'll be about £5.50 for 60. The 3-a-day tablets are about £4.50 for 60 so don't bother with them if you have the choice.
Take one a day when you start to feel a cold coming in and you will NOT get a cold! Now you have a cold/flu it'll clear up or at least ease off after a few days of taking them.
Trust me I swear by the things. I used to get really bad colds between 3 and 5 times a year. I keep some Echinacea tablets in the house and whenever I get a sniffle or sore throat I start taking them, and you wouldn't believe the difference. Haven't had a cold for nearly a year now

I felt a cold coming on a couple of weeks back, started taking them, and bearing in mind I work outside 95% of the time, I (cross fingers) haven't come down with anything so far
They're natural herbal things, now I dont usually believe in all that C**p but they boost the immune system as long as you only take them when you feel a bit iffy, because like anything, if you take it all the time your body becomes so used to it, the effects wear off.
EDIT - forgot to mention the medical profession don't back them because they havent seen any incontrovertible proof that they work, but it was in the Metro newspaper a few months ago that some research has been done and they do have an effect on colds, obviously they're not a cure but I bet you anything they'll work.
Edited by yorkshirechris, 21 December 2007 - 08:16 PM.