Upper Respiratory Infection (URI, or Common Cold)
An upper respiratory infection (URI), also known as the common cold, is one of the most common illnesses, leading to more doctor visits and absences from school and work than any other illness every year. It is estimated that during a one-year period, people in the US will suffer one billion colds. Caused by a virus that inflames the membranes in the lining of the nose and throat, colds can be the result of more than 200 different viruses. However, among all of the cold viruses, the rhinoviruses and the corona viruses cause the majority of colds.
- Most children will develop at least six to ten colds a year. This number increases for children who attend daycare.
- Colds may occur less frequently after the age of 6.
- Adults get colds about two to four times a year.
Children are most likely to have colds during fall and winter, starting in late August or early September until March or April. The increased incidence of colds during the cold season may be attributed to the fact that more children are indoors and close to each other. In addition, many cold viruses thrive in low humidity, making the nasal passages drier and more vulnerable to infection.
There are many different types of viruses that cause the common cold. In fact, over 200 different varieties of viruses can cause the symptoms of a cold. The most common virus is called the rhinovirus. Other viruses include the corona virus, parainfluenza virus, adenovirus, enterovirus, and respiratory syncytial virus.
After the virus enters your child's body, it causes a reaction - the body's immune system begins to react to the foreign virus. This, in turn, causes:
- an increase in mucus production (a runny nose).
- swelling of the lining of the nose (making it hard to breath and congestion).
- sneezing (from the irritation in the nose).
- cough (from the increased mucus dripping down the throat).
In order to catch a cold, your child must come in contact with one of the viruses that cause a cold, from someone else who is affected. The cold virus can be transmitted in the following ways:
- through the air
If a person with a cold sneezes or coughs, small amounts of the virus can go into the air. Then, if your child breathes in that air, the virus will adhere to your child's nasal membrane.
- direct contact
This means that your child directly touched a person that was infected. A cold is easy for children to spread, because they touch their nose, mouth, and eyes often and then touch other people or objects and can spread the virus. It is important to know that viruses can be spread through objects, such as toys, that have been previously touched by someone with a cold.
The symptoms of a cold start from one to three days after your child has been in contact with the cold virus. Usually, the symptoms last about one week, but this varies in each child, and may last even up to two weeks. The following are the most common symptoms of a cold. However, each child may experience symptoms differently. Symptoms may include:
- unable to sleep
- congestion in the nose
- sometimes vomiting and diarrhea
- stuffy, runny nose
- scratchy, tickly throat
- watery eyes
- mild hacking cough
- sore throat
- achy muscles and bones
- low grade fever
- watery discharge from the nose that thickens and turns yellow or green
- mild fatigue
The symptoms of the common cold may resemble other conditions or medical problems. Always consult your child's physician for a diagnosis.
A cold and the flu (influenza) are two different illnesses. A cold is relatively harmless and usually clears up by itself after a period of time, although sometimes it may lead to a secondary infection, such as an ear infection. However, the flu can lead to complications, such as pneumonia and even death. What may seem like a cold, could, in fact, be the flu. Be aware of these differences:
|Low or no fever
|Sometimes a headache
||Always a headache
|Stuffy, runny nose
||Clear nose or stuffy nose
|Mild, hacking cough
||Cough, often becoming severe
|Slight aches and pains
||Often severe aches and pains
||Several weeks of fatigue
||Sometimes a sore throat
|Normal energy level
Children suffer more colds each year than adults, due to their immature immune systems and to the close physical contact with other children at school or daycare. In fact, the average child will have six to 10 colds a year, while the average adult will get two to four colds a year. However, the average number of colds for children and adults will vary.
Most common colds are diagnosed based on reported symptoms. However, cold symptoms may be similar to certain bacterial infections, allergies, and other medical conditions. Always consult your child's physician for a diagnosis.
It is important to remember that there is no cure for the common cold and that antibiotics will not help treat a common cold. Medications are used to help relieve the symptoms, but will not make the cold go away any faster. Therefore, treatment is based on helping the symptoms and supportive care. Specific treatment will be determined by your child's physician based on:
- your child's age, overall health, and medical history
- extent of the disease
- your child's tolerance for specific medications, procedures, or therapies
- expectations for the course of the disease
- your opinion or preference
Treatment may include the following:
- increased fluid intake
This will help keep the lining of the nose and throat moist and help to prevent dehydration.
- avoidance of secondhand smoke
Keep your child away from passive (secondhand) smoke, as this will increase the irritation in the nose and throat.
To help relieve the congestion and obstruction in the nose for younger children, consider the following:
- Saline nose drops may be used.
- Use a bulb syringe to help remove the mucus.
- Place a cool mist humidifier in the room.
- Analgesics, such as acetaminophen, are sometimes helpful in decreasing the discomfort of colds.
Do not give aspirin to a child who has fever. Aspirin, when given as treatment for viral illnesses in children, has been associated with Reye syndrome, a potentially serious or deadly disorder in children. Therefore, pediatricians and other healthcare providers recommend that aspirin (or any medication that contains aspirin) not be used to treat any viral illnesses (such as colds, the flu, and chickenpox) in children.
There are other medications for congestion, cough, or runny noses. In October 2007, the US Food and Drug Administration (FDA) recommended a ban on over-the-counter cough and cold medicines for children younger than six years old.
Discuss your options with your child's physician.
Taking proper preventive measures can reduce the risk of your child developing a cold. Preventive measures may include the following:
- Keep your child away from a person with a cold.
- Encourage your child to wash his/her hands frequently and not to touch his/her mouth, eyes, or nose until their hands are washed.
- Make sure toys and play areas are properly cleaned, especially if multiple children are playing together.
The following are some of the complications that might occur if your child gets a cold:
- ear infections
- sinus infections
- throat infections
Consult your child's physician for further evaluation.
Contrary to popular belief, cold weather or getting chilled does not cause a cold, according to the National Institute of Allergy and Infectious Diseases (NIAID). However, more colds do occur during the cold season (early fall to late winter), which is probably due to a variety of factors, including the following:
- schools are in session, increasing the risk for exposure to the virus
- people stay more indoors and are in closer proximity to each other
- low humidity, causing dry nasal passages which are more susceptible to cold viruses