Sickening

It was bound to happen. Before I got the Saturn, I was riding around in public transportation inhaling all manner of germs and pestilence and the people I work with don’t stay home even if they are afflicted with bronchitis! So now I am miserable with a burning throat and a groggy mind, which has been dulled by Nyquil and Dayquil and Benadryl and Cepacol. I had to down a diet Red Bull just to get me through the day. But at lunchtime I shall have to sleep in the car for the whole half hour or I might not survive the second half of the day. How I’m going to drive home is beyond me. It’s also beyond me how I will get through the next three weeks. I can’t miss work because I have no sick time left and I am up to my armpits in debt. But we have a Christmas break coming up and I can be as sick as I want then. Please let me make it! Following is a description of what a cold is:


A common cold is an illness caused by a virus infection located in the nose. Colds also involve the sinuses, ears, and bronchial tubes.
The symptoms of a common cold include sneezing, runny nose, nasal obstruction, sore or scratchy throat, cough, hoarseness, and mild general symptoms like headache, feverishness, chilliness, and not feeling well in general.
Colds last on average for one week. Mild colds may last only 2 or 3 days while severe colds may last for up to 2 weeks.
A cold is a milder illness than influenza. Influenza typically causes fever, muscle aches, and a more severe cough. However, mild cases of influenza are similar to colds.
Adults average 2 to 3 colds per year and children 6 to 10, depending on their age and exposure. Children's noses are the major source of cold viruses.
There are over 100 different cold viruses. Rhinoviruses are the most important and cause at least one-half of colds.
Cold viruses can only multiply when they are inside of living cells. When on an environmental surface, cold viruses cannot multiply. However, they are still infectious if they are transported from an environmental site into the nose.
Cold viruses live only in the noses of humans and not in animals except chimpanzees and other higher primates.

Here are some myths:

Myth 1:
The greatest myth about the common cold is that susceptibility to colds requires a weakened immune system.
Facts:
1. Healthy people with normal immune systems are highly susceptible to cold virus infection once the virus enters the nose. In volunteers studies, approximately 95% of normal adults became infected when virus was dropped into the nose (also see How Cold Virus Infection Occurs).
2. Of people who become infected, only 75% develop symptoms with a cold. The other 25% have virus growing in the nose but have no symptoms. They have an "asymptomatic infection".
3. Why people sometimes become infected but do not develop cold symptoms is a mystery. One clue is that in such instances the person may not be producing the normal amount of certain inflammatory mediators, the natural body chemicals which cause cold symptoms (also see What Causes Cold Symptoms). If this theory is correct, then people with active immune systems may be more prone to developing cold symptoms than people with less active immune systems!


Myth 2:
Central heating dries the mucus membranes of the nose and makes a person more susceptible to catching a cold.
Facts:
1. As discussed above, a cold virus does not need the help of dry mucus membranes to initiate a cold once it enters the nose (also see How Cold Virus Infection Occurs).
2. The nasal mucus membrane is very resistant to the effects of low humidity. Volunteers placed in chambers where the humidity was dramatically lowered (9% relative humidity, such as found in a desert) still have normal clearance function of the nasal mucus membrane. Low humidity makes the nose feel dry but the mucus membrane still continues to work normally.
3. The cold season in the United States typically begins in late August and early September at a time when temperatures are still moderate and central heating is not being used. September is the time of a major common cold epidemic despite people not being exposed to the drying effects of central heating.


Myth 3:
Becoming cold or chilled leads to catching a cold.
Facts:
1. As discussed above, almost everybody becomes infected whether they are chilled or not, if cold virus is dropped into the nose.
2. One study has looked at this question. It was found that colds were no more frequent or severe in volunteers who were chilled than those who were not.



Myth 4:
Having cold symptoms is good for you because they help you get over a cold, therefore you should not treat a cold.
Facts:
1. Approximately 25% of people who get a cold virus infection do not develop symptoms and yet they get over the infection as well as people who do have symptoms (also see How Virus Infection Occurs).
2. The nose can only respond to irritative events such as a cold virus infection or dust or pollen entering the nose in a limited number of ways. Sneezing and nasal secretions are useful in removing dust and pollen from the nose but do not eliminate cold viruses since the virus is multiplying inside the nasal cells where it is safe.
3. Nose blowing propels nasal secretions into the sinus cavity. Nasal secretions contain viruses, bacteria, and inflammatory mediators all of which are able to produce inflammation in the sinus cavity. This may lead to secondary bacterial infection.
4. Nose blowing, sneezing, and coughing benefit the virus by helping spread it to other people (see How Colds are Spread).
5. Commercially available and FDA approved cold treatments are safe and effective (see Treatment). It makes sense to use them because they benefit the cold sufferer and may help prevent the spread of colds.



Myth 5:
Drinking milk causes increased nasal mucus during a cold.
Facts:
1. Milk and mucus may look alike, but milk is digested like any other protein and is not specifically converted into nasal mucus.
2. An Australian study was actually done in volunteers to address this question. It showed that people drinking lots of milk had no more nasal mucus than those not drinking milk.


Myth 6:
You should feed a cold (and starve a fever).
Facts:
1. The origin of this old saying is obscure. There is no scientific evidence that excess eating will cure a cold.
2. On the other hand, eating tasty food will not make a cold worse and may help the cold victim feel better. Commoncold.org features tasty recipes for the cold sufferer.
(reprinted from http://www.commoncold.org/special1.htm)