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As a vasoconstrictor, caffeine narrows the blood vessels in the body. Symptoms of the common cold like nasal congestion may be temporarily relieved through the use of caffeine by reducing acute inflammation of the turbinates. Also, the stimulant effects of the drug can minimize the sedative effects of antihistamines and reduce fatigue associated with the common cold.

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13y ago
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13y ago

No - in fact, it would not be a good idea to drink coffee with a cold. You need fluids more than anything, and caffeine being a diuretic will work to remove fluids from your body rather than add them.

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Q: How does caffeine affect the common cold?
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