Been off work for a week with a head cold, which is expected I think, as I work my way through the Russian virus variations. Everyone thinks of this as the cold and flu season; actually of many illnesses - the people I work with consider that Russians are a sickly lot. This is not just with the flu/грипп (gripp), or headcold/насморк (nasmork) or chill/простуда(prostida) but also with all sorts of minor headaches and tiredness; unusually put down to barometric pressure or electro-magnetic forces.
As to remedies - well I used vitamin C, but the main recommendation was a product based on (so I was told) chicken blood called оциллококцинум. Yes, I know, and I haven't tried it. Well, not yet.