Common cold

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Antibodies

Cold symptoms

Throat anatomy

Upper respiratory infection - viral; Cold

The three most frequent symptoms of a cold are:

• Runny nose
• Nasal congestion
• Sneezing

Adults and older children with colds generally have minimal or no fever. Young children, however, often run a fever around 100-102°F.

Once you have "caught" a cold, the symptoms usually begin in 2 or 3 days, though it may take a week. Typically, an irritated nose or scratchy throat is the first sign, followed within hours by sneezing and a watery nasal discharge.

Within one to three days, the nasal secretions usually become thicker and perhaps yellow or green. This is a normal part of the common cold and not a reason for antibiotics.

Depending on which virus is the culprit, the virus might also produce:

• Sore throat
• Cough
• Muscle aches
• Headache
• Postnasal drip
• Decreased appetite

Still, if it is indeed a cold, the main symptoms will be in the nose.

For children with asthma, colds are the most common trigger of asthma symptoms.

Colds are a common precursor of ear infections. However, children's eardrums are usually congested during a cold, and it's possible to have fluid buildup without a true bacterial infection.

The entire cold is usually over all by itself in about 7 days, with perhaps a few lingering symptoms (such as cough) for another week. If it lasts longer, see your doctor to rule out another problem such as a sinus infection or allergies.

Review Date: 08/08/2006
Reviewed By: D. Scott Smith, MD, MSc, DTM&H, Chief of Infectious Disease & Geographic Medicine, Kaiser Redwood City, CA & Adjunct Assistant Professor, Stanford University. Review provided by VeriMed Healthcare Network.