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Offline Theresa

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Common cold:overview and general causes
« on: May 27, 2019, 09:18:32 AM »
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  • COMMON COLD :OVERVIEW AND GENERAK CAUSES





    Overview
    The common cold is a viral infection of your nose and throat (upper respiratory tract). It's usually harmless, although it might not feel that way. Many types of viruses can cause a common cold.

    Children younger than 6 are at greatest risk of colds, but healthy adults can also expect to have two or three colds annually.

    Most people recover from a common cold in a week or 10 days. Symptoms might last longer in people who smoke. If symptoms don't improve, see your doctor.

    Symptoms
    Symptoms of a common cold usually appear one to three days after exposure to a cold-causing virus. Signs and symptoms, which can vary from person to person, might include:

    Runny or stuffy nose
    Sore throat
    Cough
    Congestion
    Slight body aches or a mild headache
    Sneezing
    Low-grade fever
    Generally feeling unwell (malaise)
    The discharge from your nose may become thicker and yellow or green in color as a common cold runs its course. This isn't an indication of a bacterial infection.

    When to see a doctor
    For adults seek medical attention if you have:

    Fever greater than 101.3 F (38.5 C)
    Fever lasting five days or more or returning after a fever-free period
    Shortness of breath
    Wheezing
    Severe sore throat, headache or sinus pain
    For children in general, your child doesn't need to see the doctor for a common cold. But seek medical attention right away if your child has any of the following:

    Fever of 100.4 F (38 C) in newborns up to 12 weeks
    Rising fever or fever lasting more than two days in a child of any age
    Symptoms that worsen or fail to improve
    Severe symptoms, such as headache or cough
    Wheezing
    Ear pain
    Extreme fussiness
    Unusual drowsiness
    Lack of appetite

    Causes
    Although many types of viruses can cause a common cold, rhinoviruses are the most common culprit.

    A cold virus enters your body through your mouth, eyes or nose. The virus can spread through droplets in the air when someone who is sick coughs, sneezes or talks.

    It also spreads by hand-to-hand contact with someone who has a cold or by sharing contaminated objects, such as utensils, towels, toys or telephones. If you touch your eyes, nose or mouth after such contact or exposure, you're likely to catch a cold.

    Risk factors
    These factors can increase your chances of getting a cold:

    Age. Children younger than 6 are at greatest risk of colds, especially if they spend time in child-care settings.
    Weakened immune system. Having a chronic illness or otherwise weakened immune system increases your risk.
    Time of year. Both children and adults are more susceptible to colds in fall and winter, but you can get a cold anytime.
    Smoking. You're more likely to catch a cold and to have more-severe colds if you're exposed to cigarette smoke.
    Exposure. If you're around many people, such as at school or on an airplane, you're likely to be exposed to viruses that cause colds.
    Complications
    Acute ear infection (otitis media). This occurs when bacteria or viruses enter the space behind the eardrum. Typical signs and symptoms include earaches and, in some cases, a green or yellow discharge from the nose or the return of a fever following a common cold.
    Asthma. A cold can trigger an asthma attack.
    Acute sinusitis. In adults or children, a common cold that doesn't resolve can lead to inflammation and infection of the sinuses (sinusitis).
    Other secondary infections. These include strep throat (streptococcal pharyngitis), pneumonia, and croup or bronchiolitis in children. These infections need to be treated by a doctor.
    Prevention
    There's no vaccine for the common cold, but you can take commonsense precautions to slow the spread of cold viruses:

    Wash your hands. Clean your hands thoroughly and often with soap and water, and teach your children the importance of hand-washing. If soap and water aren't available, use an alcohol-based hand sanitizer.
    Disinfect your stuff. Clean kitchen and bathroom countertops with disinfectant, especially when someone in your family has a cold. Wash children's toys periodically.
    Use tissues. Sneeze and cough into tissues. Discard used tissues right away, then wash your hands carefully.

    Teach children to sneeze or cough into the bend of their elbow when they don't have a tissue. That way they cover their mouths without using their hands.

    Don't share. Don't share drinking glasses or utensils with other family members. Use your own glass or disposable cups when you or someone else is sick. Label the cup or glass with the name of the person with the cold.
    Steer clear of colds. Avoid close contact with anyone who has a cold.
    Choose your child care center wisely. Look for a child care setting with good hygiene practices and clear policies about keeping sick children at home.
    Take care of yourself. Eating well, getting exercise and enough sleep, and managing stress might help you keep colds at bay.

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    NaijaSky

    Common cold:overview and general causes
    « on: May 27, 2019, 09:18:32 AM »
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