why do you get a runny nose from a cold?
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The common cold, or an upper respiratory infection, causes inflammation in the mucous membrane lining of the nose, resulting in too much mucus. In addition to a runny nose, the common cold can sometimes cause nasal congestion.
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Sniffing Out High Blood Pressure Risk. Feb. 18, 2003 -- A frequent runny or stuffy nose may be more than just a vulnerability to pollen, pet dander, or cold germs: It can also make men more susceptible to high blood pressure, suggests a new study.
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When you have a cold, your body makes chemicals called histamines. That leads to sneezing, a runny nose, and watery eyes. Over-the-counter antihistamines such as chlorpheniramine and diphenhydramine block this process and can relieve those symptoms.
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This can happen from colds, allergies, the flu, or other irritants. When that thick mucus dries out, you get more boogers. You may have more boogers in dry weather, cold rooms, and dusty environments. Sinus infections and runny noses can also lead to more dried mucus building up in your nose.
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Rhinovirus can bring on all of the familiar symptoms of a cold: runny nose, sneezing, sore throat, headache, cough, and body aches. In some people, it can cause a mild fever, and may also lead to ear infections or sinus infections.
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If you're coughing, sneezing, or dealing with a runny nose more frequently than others, especially during certain seasons, then your symptoms could be due to allergies. 4 While colds are caused by viruses, allergies are triggered by exposure to indoor or outdoor allergens, like pollen, dust, mold, or pet dander.
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What causes allergic rhinitis? When your body comes into contact with an allergen, it releases histamine, which is a natural chemical that defends your body from the allergen. This chemical can cause allergic rhinitis and its symptoms, including a runny nose, sneezing, and itchy eyes.
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If you have a runny nose, cough, hoarseness, and red or runny eyes, it's probably a virus and will clear up on its own. Strep throat is different. Signs that you may have strep throat include: red and white patches in the throat.
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Reasons for Running You have a cold or the flu: When you have either one of these, your nose goes into mucus-making overdrive to keep the germ invaders out of your lungs and the rest of your body, where they might make you even sicker than you already are.
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Gustatory rhinitis is the medical term for a runny nose that's caused by food. Certain foods, especially hot and spicy ones, are known triggers.
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Your runny nose is trying to wash away bugs that make you sick. Mucus is good. It can help prevent ailments and help your body get rid of infections. So, now that it's cold and flu season, it's especially important to stay hydrated.
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Key Symptoms of a Cold It can be difficult to identify if you have a cold or flu because these symptoms overlap. It may be helpful to remember that a runny, stuffy nose is a common indicator of a cold, along with scratchy throat, sneezing, watery eyes, and a mild fever (below 102 F).
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So when your body is prepping to poop, it also fires up nerves in your nasal regions as a byproduct, too—which can cause the blood vessels in your nose to widen. Basically, pooping puts your body in sensory overdrive, dilating the vessels in your nasal region, resulting in the runny nose.
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Allergies are recognized by a runny nose, itchy eyes and throat, and/or skin rashes, such as hives. A person may have one or all of these symptoms. According to Calebrese, you'll know it's a cold and not allergies if it goes away in a few days or is accompanied by a fever.
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When your body produces more mucus than usual or it's thicker than normal, it becomes more noticeable. The excess can come out of the nostrils -- that's a runny nose. When the mucus runs down the back of your nose to your throat, it's called postnasal drip.
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Runny Nose, Watery Eyes, and Sneezing When you have a cold, your body makes chemicals called histamines. That leads to sneezing, a runny nose, and watery eyes. Over-the-counter antihistamines such as chlorpheniramine and diphenhydramine block this process and can relieve those symptoms.
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A runny nose is a discharge of mucus from the nostrils. It's the result of excess nasal mucus production. The excess nasal mucus leads to watery nasal secretions that flow out of your nostrils or drip down into your throat. Nasal congestion is due to the inflammation of the linings of the nasal cavity.