Sinusitis is infection or inflammation of the lining of the sinus cavities. These are hollow spaces in your cheeks and around your eyes. Sinus infections often follow a cold and cause pain and pressure in your head and face.
Whooping cough (pertussis) is a highly contagious bacterial infection of the upper respiratory system—specifically, the area where the nasal passages meet the back of the throat (nasopharynx). The infection causes irritatio
Influenza (flu) is a viral infection. People often use the term "flu" to describe any kind of mild illness, such as a cold or a stomach virus, that has symptoms like the flu. But the real flu is different. Flu symptoms are usually
Fever is the body's normal and healthy reaction to infection and other illnesses, both minor and serious. It helps the body fight infection. Fever is a symptom, not a disease. In most cases, having a fever means you have a minor illness.
Coughing is the body's way of removing foreign material or mucus from the lungs and upper airway passages or of reacting to an irritated airway. Coughs have distinctive traits you can learn to recognize. A cough is only a symptom, not
Sore throats can be painful and annoying. Fortunately, most sore throats are caused by a minor illness and go away without medical treatment.
Constantly wiping your baby's nose? Learn to treat — and prevent — the common cold.
The flu is often confused with the common cold. Flu symptoms are usually more severe and appear suddenly.
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