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lisa_lordes lisa_lordes
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7 years ago
Many people, when they have a sinus headache, often use decongestant nasal sprays. Why are such sprays useful?
A) They dry out the breathing passageways in the pharynx, making it easier to breathe.
B) They have a pain-blocking effect in the brain.
C) They reduce the symptoms of sore throat inflammation, which exacerbates the pain.
D) They reduce swelling, allowing the sinuses to drain.
Textbook 
Biology of Humans: Concepts, Applications, and Issues

Biology of Humans: Concepts, Applications, and Issues


Edition: 5th
Authors:
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R.FrantR.Frant
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7 years ago
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lisa_lordes Author
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7 years ago
Good timing, thanks!
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Yesterday
Thanks for your help!!
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2 hours ago
Correct Slight Smile TY
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