Quote (SeaBas @ Jun 20 2012 02:48pm)
Do you know, what is the point of 'having a cold' ?
Why do you get a running nose? What does it have to do with being exposed to low temperatures/lack of sleep etc.

?
When the immune system is compromised, either from lack of sleep, lack of proper nutrition, too many free radicals, excessive allergens, excessive stress, or some kind of disease - your body is highly susceptible to becoming infected with viruses and bacteria.
Your body fighting off the invading virus/bacteria is what causes the "cold"
The sinus discharge and swelling is all part of the body trying to rid itself of the invader(s). However at times, the body's own self defense mechanism works against itself, like with HIV/AIDS.
Without going into too much detail, I'll just say this - get plenty of sleep, eat healthy, take your vitamins, get 20-30 mins of sun every day, reduce stress, and avoid exposure to sick people, and also avoid allergens and you should be good to go
