Most babies and older children have several mild infections of the respiratory system each year.
The upper respiratory system includes the nose, mouth, sinuses, and throat. A child with an upper respiratory infection may feel uncomfortable and sound very congested. Other symptoms of an upper respiratory infection include:
The lower respiratory system includes the bronchial tubes and lungs. Respiratory problems are less common in the lower respiratory system than in the upper respiratory system.
Symptoms of a lower respiratory (bronchial tubes and lungs) problem usually are more severe than symptoms of an upper respiratory (mouth, nose, sinuses, and throat) problem. A child with a lower respiratory problem is more likely to require a visit to a doctor than a child with an upper respiratory problem.
Symptoms of lower respiratory system infections include:
Respiratory problems may have many causes.
Children with a fever often have an infection caused by a virus, such as a cold or the flu. Infections caused by bacteria, such as bacterial pneumonia, also can cause a fever. Babies younger than 6 months should be seen by a doctor anytime they have a fever because they can get extremely sick quickly.
Temperature varies depending on how you take it. The most common methods to measure it are:
To convert a temperature from one method to another, use the Interactive Tool: How Do Temperatures Compare?
Viral infections cause most upper respiratory infections. Sore throats, colds, croup, and influenza (flu) are common viral illnesses in babies and older children. These infections are usually mild and go away in 4 to 10 days, but they can sometimes be severe. For more information, see the topics Croup and Influenza (Seasonal Flu).
Home treatment can help relieve the child's symptoms. The infection usually improves on its own within a week and is gone within 14 days.
Antibiotics are not used to treat viral illnesses and do not alter the course of viral infections. Unnecessary use of an antibiotic exposes your child to the risks of an allergic reaction and antibiotic side effects, such as nausea, vomiting, diarrhea, rashes, and yeast infections. Antibiotics also may kill beneficial bacteria and encourage the development of dangerous antibiotic-resistant bacteria.
Viral lower respiratory system infections may be mild, similar to upper respiratory system infections. An example of a possibly serious viral infection is bronchiolitis. Up to 10% of babies and children with viral infections of the lower respiratory system, such as those caused by respiratory syncytial virus (RSV), may develop severe blockage of the air passages and require hospitalization for treatment. For more information, see the topics Acute Bronchitis, Pneumonia, and Respiratory Syncytial Virus (RSV) Infection.
The most common sites for bacterial infections in the upper respiratory system are the sinuses and throat. A sinus infection is an example of an upper respiratory bacterial infection.
Bacterial pneumonia may follow a viral illness as a secondary infection or appear as the first sign of a lower respiratory infection. In babies and small children, the first sign of infection often is rapid breathing, irritability, decreased activity, and poor feeding. Antibiotics are effective against bacterial infections.
is a less common bacterial infection of the lower respiratory system.
Allergies are a common cause of respiratory problems. Allergy symptoms in children include:
Babies and small children usually do not have asthma. But the number of new cases of asthma increases with age.
Besides asthma, allergies, and infection, other possible causes of respiratory problems in children include:
Babies and children younger than age 3 may have more symptoms with respiratory problems than older children, and they may become more ill. For this reason, younger children need to be watched more closely. The type and severity of the symptoms helps determine whether your child needs to see a doctor.
Check your child's symptoms to decide if and when your child should see a doctor.
Health Tools help you make wise health decisions or take action to improve your health.
Many things can affect how your body responds to a symptom and what kind of care you may need. These include:
You have answered all the questions. Based on your answers, you may be able to take care of this problem at home.
Symptoms of difficulty breathing can range from mild to severe. For example:
Symptoms of difficulty breathing in a baby or young child can range from mild to severe. For example:
Severe trouble breathing means:
Moderate trouble breathing means:
Mild trouble breathing means:
If you're not sure if a child's fever is high, moderate, or mild, think about these issues:
With a high fever:
With a moderate fever:
With a mild fever:
Temperature varies a little depending on how you measure it. For children up to 11 years old, here are the ranges for high, moderate, and mild according to how you took the temperature.
Oral (by mouth), ear, or rectal temperature
A forehead (temporal) scanner is usually 0.3 C (0.5 F) to 0.6 C (1 F) lower than an oral temperature.
Armpit (axillary) temperature
Note: For children under 5 years old, rectal temperatures are the most accurate.
Certain health conditions and medicines weaken the immune system's ability to fight off infection and illness. Some examples in children are:
Symptoms of serious illness in a baby may include the following:
Symptoms of serious illness may include:
Sudden drooling and trouble swallowing can be signs of a serious problem called epiglottitis. This problem can happen at any age.
The epiglottis is a flap of tissue at the back of the throat that you can't see when you look in the mouth. When you swallow, it closes to keep food and fluids out of the tube (trachea) that leads to the lungs. If the epiglottis becomes inflamed or infected, it can swell and quickly block the airway. This makes it very hard to breathe.
The symptoms start suddenly. A person with epiglottitis is likely to seem very sick, have a fever, drool, and have trouble breathing, swallowing, and making sounds. In the case of a child, you may notice the child trying to sit up and lean forward with his or her jaw forward, because it's easier to breathe in this position.
You can use a small rubber bulb (called an aspirating bulb) to remove mucus from your baby's nose or mouth when a cold or allergies make it hard for the baby to eat, sleep, or breathe.
To use the bulb:
Don't do this more than 5 or 6 times a day. Doing it too often can make the congestion worse and can also cause the lining of the nose to swell or bleed.
A baby that is extremely sick:
A baby that is sick (but not extremely sick):
Based on your answers, you may need care right away. The problem is likely to get worse without medical care.
Based on your answers, you need emergency care.
or other emergency services now.
Based on your answers, the problem may not improve without medical care.
Based on your answers, you may need care soon. The problem probably will not get better without medical care.
Most children have 7 to 10 mild upper respiratory infections each year. Your child may feel uncomfortable and have a stuffy nose. The infection is usually better within a week and is usually gone within 14 days.
Home treatment is appropriate for mild symptoms and can help your child feel better.
Talk to your child's doctor before switching back and forth between doses of acetaminophen and ibuprofen. When you switch between two medicines, there is a chance your child will get too much medicine.
Call your child's doctor if any of the following occur during home treatment:
It is common for children to develop respiratory problems (such as viral infections) because they are often exposed to other people who have infections and have not built up immunity. There is no sure way to prevent many respiratory illnesses in babies and children. Very young babies are at greater risk for developing complications from respiratory illnesses, so it is important to do what you can to protect them from exposure. The following may help reduce your child's risk for respiratory problems:
To prepare for your appointment, see the topic Making the Most of Your Appointment.
You can help your child's doctor diagnose and treat your child's condition by being prepared to answer the following questions:
ByHealthwise StaffPrimary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency MedicineJohn Pope, MD - PediatricsAdam Husney, MD - Family MedicineKathleen Romito, MD - Family MedicineSpecialist Medical ReviewerDavid Messenger, MD
Current as ofMarch 20, 2017
Current as of: March 20, 2017
William H. Blahd, Jr., MD, FACEP - Emergency Medicine
& John Pope, MD - Pediatrics & Adam Husney, MD - Family Medicine & Kathleen Romito, MD - Family Medicine & David Messenger, MD
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