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Respiratory Problems, Age 12 and Older
About this symptom
Most adults and older
children have several respiratory infections each year. Respiratory problems
can be as minor as the common cold or as serious as
pneumonia. They may affect the upper respiratory
system (nose, mouth, sinuses, and throat) or the lower bronchial tubes and
lungs. See a picture of the
respiratory system 
.
Upper respiratory system
The upper respiratory system includes the nose, mouth, sinuses, and throat. When you have an upper respiratory infection, you may feel uncomfortable, have a stuffy nose, and sound very congested. Other symptoms of an upper respiratory infection include:
- Facial pain or pressure.
- A runny or stuffy nose, which may lead to blockage of the nasal passages and cause you to breathe through your mouth.
- A sore throat.
- Irritability, restlessness, poor appetite, and decreased activity level.
- Coughing, especially when lying down.
- Fever that occurs suddenly and may reach 103°F (39°C) or higher.
Lower respiratory system
The lower respiratory system includes the bronchial tubes and lungs. Respiratory problems are less common in the lower respiratory system than upper respiratory system.
The 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.
Symptoms of lower respiratory system infections include:
- Cough, which continues throughout the day and night, often producing green, yellow, brown, or gray mucus (sputum) from the lungs.
- Fever, which may be high with some lower respiratory system infections such as pneumonia.
- Difficulty breathing. You may notice:
- Shortness of breath.
- Grunting, which is heard during the breathing out (exhaling) phase of breathing.
- Wheezing.
- Flaring the nostrils and using the neck, chest, and abdominal muscles to breathe, causing a "sucking in" between or under the ribs (retractions).
- Chest pain with exertion or when you take a deep breath.
Respiratory problems may have many causes.
Viral infections
Viral infections are the most common cause of upper respiratory symptoms. Symptoms of a viral illness often come on quickly (over hours to a day or two) without prior illness. Common viral illnesses include colds and influenza (flu).
- Colds are minor upper respiratory illnesses that usually go away without treatment. Symptoms may include cough, mild sore throat, nasal congestion, runny nose or sneezing, and occasionally a fever of 101°F (38°C) or lower.
- Influenza (flu) symptoms are usually more severe than a cold. The key symptoms in adults are fever, often 104°F (40°C) or higher, and body aches. Headache, eye pain, muscle aches, and cough are also common. For more information, see the topic Influenza.
Antibiotics are not used to treat viral illnesses and do not alter the course of viral infections. Unnecessary use of an antibiotic exposes you 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.
Bacterial infections
Bacterial infections may develop after a viral illness, such as a cold or influenza, and are less common than viral illnesses. Bacterial infections may affect the upper or lower respiratory system. Symptoms tend to localize to one area. In the upper respiratory system, the most common sites of bacterial infections are the sinuses and throat. In the lower respiratory system, the most common site is the lungs (pneumonia).
Bacterial infections are more common in smokers, people exposed to secondhand smoke, and people with chronic lung disease (such as asthma or chronic obstructive pulmonary disease [COPD]) and other chronic medical problems. Antibiotics can effectively treat most bacterial infections.
Allergies
Allergies, especially hay fever, are another common respiratory problem. Symptoms include sneezing, clear runny drainage from the nose and eyes, itchy eyes or nose, and stuffy, congested ears and sinuses. The symptoms of allergies often last longer than a typical viral respiratory infection. For more information, see the topic Allergic Rhinitis.
Asthma
Asthma is a chronic disease of the respiratory system. It causes inflammation and narrowing in the tubes that carry air to the lungs (bronchial tubes). The inflammation leads to difficulty breathing, wheezing, tightness in the chest, and cough.
Asthma often begins during childhood and may last throughout a person's life. The cause of asthma is not clearly known. It is more common in people who also have allergies. For more information, see the topic Asthma in Children or Asthma in Teens and Adults.
Use the Check Your Symptoms section to decide if and when you should see a doctor.
| By: | Healthwise Staff | Last Revised: April 13, 2010 |
| Medical Review: | David Messenger, MD Kathleen Romito, MD - Family Medicine | |
© 1995-2011 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated. This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.
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