Why does being cold make it easier to get some kinds of viruses?
If I had a definitive answer to this, I would write it up, sit back, and wait for the Nobel Prize committee to come calling.There are a number of reviews on this in the medical literature (e.g. Eccles, R. and J. E. Wilkinson (2015). "Exposure to cold and acute upper respiratory tract infection." Rhinology 53(2): 99-106.). Those I have read conclude that there is an increased incidence but the reasons are not fully understood.Exposure to cold suppresses the immune system, which is clearly part of the explanation, but probably not the only factor.
Does getting a flu have anything to do with exposure to cold weather?
Name "common cold", while not exactly flu as asked here, but in the same group of upper respiratory tract infections (URTI), probably has some root in people's observation (a very similar name in Croatian language, Slavic group, also in Italian "raffreddore", from freddo = cold).My experience, from long before I studied medicine, was that exposure to prolonged cold, the one that really cools you to a great discomfort, increases the risk from URTI notably. Especially if e. g. running > 10-20 min on cold day while breathing through mouth*, or drinking very cold fluids, or swimming in cold water.This, however, might have various explanations, from decreased defense of mucosa (surface epithelium here) through slower blood supply, decreased mobility and function of immune cells in lower temperature, decreased function of immune defense molecules in mucosal fluid, like IgA, some enzymes and others - or simply, certain pathogens' cell adhesion or tissue invasion works better in lower temperature conditions.The fact that body usually raises its temperature in infections, resulting with beneficially faster biochemical reactions in immune system, also speaks in favor of immune system not being able to work at its best in cooled down mucosa.* Breathing through mouth allows cold air in directly, while the nose has organized, complex air flow and superficial vein networks which all warms the air greatly. And this hasn't evolved by accident, the nature sure has a purpose for it. As cold air, having a low thermal capacity, is highly unlikely to be a threat to whole body temperature, it is tempting to conclude our respiratory system mucosa is the one with necessity to be defended from cold.
How does low temperature make us sometimes get a cold?
Some microorganisms, viruses in psrticular, replicate at cool temperatures. Plus when it’s cold, the air is usually dry. These two factors match the cold virus needs perfectly. The cold air temperature make your nose cooler than your core body temperature. And the dry air dries out the membranes in your nose making them more susceptible to infection. For the cold viruses it’s the perfect storm.
Eye gunk, some (almost no) cold symptoms. No exposure to pink eye. What's she got?
My daughter has had that happen and it did go away on its own. I kept her home and it was better the next day. Usually with conjunctivitis your eye seeps that gunk all day and it's very annoying. Your eye is totally stuck shut in the morning from it seeping all night. I've had it twice. Once I scratched my eye messing with my contact and it became infected. I ended up giving it to my daughter. She was 1.5 or 2 and always pointing out eyes, nose and mouth and she got it before I realized it was contagious :( The second time I got it, some dust and junk from an old box of Xmas decorations at work fell into my eye as I was getting them off a shelf.
Taking Valtrex but it's making the Herpes worse!?
With heat and friction genital herpes seem get worse. I do think you have something with the vaginal dryness. I think it is the herpes itself that causes the vaginal dryness. With time outbreaks are supposed to be less often and sever. I wish I knew the golden time frame in which these monster decide to let up. I wish I could tell you of a magic cure. If there were one out there, I am sure the world would know about it. Do you eat a lot of foods with aspartame in them. It is an artificial sweetener found in diet pop, gum and stuff like that. They are known to trigger outbreaks. Other than that, I can offer anymore advice. Good health to you!
How relevant is exposure to cold temperature in 'catching a cold'?
Generally speaking - irrelevant, since common cold is a virus (actually, one of several varieties of rhinovirus). This is probably the most prevalent myth I have seen propagated and supported - especially by older generation - across multiple cultures. Ever been told by your mom to dress up warmer when going out, otherwise you would “get sick”? You know what I’m talking about…So why then do people catch cold in colder season more than in warmer season? One reason is that the virus survives and replicates better in cold temperatures than in hot temperatures - so during colder seasons you are just exposed to it much more. Another theory is that exposure to colder temperatures (or fluctuations in temperature may temporarily weaken our innate immune systems making it easier for the virus to sneak by undetected. Personally, I do not find this evidence very conclusive, because there are plenty of studies that suggest that structured and relatively brief exposures to extreme cold (or extreme heat) - within tolerable limits of course - such as cryo-cameras and saunas actually improve immune function.So, the reason behind common cold epidemics in the winter is probably just the fact that the virus survives better and that people spend more time indoors, where the likelihood of catching it from someone else increases exponentially.
Should I pop my cold sore?
Leave it alone. Don't pop it. You could make it worse. It will break on its own. The absolute best treatment for cold sores is a prescription medication in pill form called Valtrex. It was intended for genital herpes, but cold sores are caused by the same family of viruses, and Valtrex stops colds sores in their tracks. None of the other treatments come close to the effectiveness of Valtrex, not the ointment Zovirax, and certainly not Abreva or anything else. Ask your doctor about it to see if you would be a good candidate for this medication. My doctor prescribed it for me for cold sores about five years ago and after taking it only a couple of times I hardly ever get a cold sore any more, and before Valtrex I was having several attacks a year. On the rare occasions that I do get one now, it is gone almost immediately when I take the medication - in about a day. In the meantime, here are a few informative links. http://www.webmd.com/skin-problems-and-treatments/tc/cold-sores-topic-overview http://kidshealth.org/kid/ill_injure/aches/cold_sores.html http://www.herpes.com/Transmission.shtml http://herpes-coldsores.com/herpes_transmission.htm http://www.medterms.com/script/main/art.asp?articlekey=9542 http://www.articlealley.com/article_16072_23.html http://findarticles.com/p/articles/mi_m1200/is_n19_v143/ai_13784950
Medical Professional answers needed: Does a "cold" tummy cause problems?
You can BOTH be right. Getting cold can make you sick. However, its not the cold that makes you sick. The cold lowers your immune system and makes you more susceptible to the things in the air. However, its just as likely that she ate something bad for her. She may have eaten something off the floor while you were not looking. Or perhaps she has an unknown allergy? It sounds like she may need you to take her to a doctor. For a 1 year old those can be pretty serious symptoms. Keep an eye on her and if her symptoms persist you must seek medical consult. However if it only lasted the morning it was probably something she ate. Best way to check if its a cold/flu/stomach flu or a allergy or bad reaction to bad food is whether or not she has a runny nose. If she does flu or some other virus. If not...food poisoning or allergic reaction. Good luck and remember its best to just agree to disagree until further notice when you can get an outside opinion. Fighting over something as important as health can hurt someone. Always do whats in the best interest of the child!! Again, Good luck !