You may want to bring honey the next time you have a cold,a study says.That's because honey has been shown to provide better cough relief than some over-the-counter drugs,Oxford University researchers aid in findings published in BMJ Evidence-Based Medicine.
"Honey is more effective than usual care choices for improving upper respiratory tract infection（呼吸道感染）symptoms,particularly reducing cough frequency and cough severity," the scientists said in the findings.
Researchers said they reviewed 14 about upper respiratory tract infections,also known as common colds.Symptoms can include runny or stuffy nose,sneezing,sore throat and coughing,according to the Centers for Disease Control and Prevention（CDC）.
Four of the studies examined comparisons between honey and diphenhydramine，an antihistamine that can be used to relieve coughs,according to the U.S.government.It's sold at U.S.drugstores under several brand names and is combined with other ingredients（成分）in some cold medicines.
In their findings,Oxford scientists said honey was "significantly better than" diphenhydramine honey was "not significantly better" at cough relief when compared to another class of medicines,called dextromethorphan,according to a review of two studies with a combined 137 patients.Dextromethorphan is used to suppress（抑制）coughs.
Anyone sick with a cold should talk to a druggist or doctor about the best medicines for them,according to health officials."Over-the-counter medicines may provide temporary relief of symptoms,but they will not cure your illness," the CDC said on its website.
The CDC includes honey on its list of possible ways to suppress coughs.Other tips for feeling better from a cold include getting enough rest,breathing in steam and using saline spray,according to the CDC.



What's the author's purpose in writing this text？ ______

A. To prove honey's effectiveness in relieving cough.
B. To inform the readers how to better prevent colds.
C. To make a comparison between honey and medicines.
D. To give a description of symptoms of common colds.

What does the underlined word "diphenhydramine" in Paragraph 4 refer to？ ______

A. A cold symptom.
B. A sort of sweet food.
C. A kind of cold medicine.
D. A brand name of medicine.

What can we infer from CDC's advice？ ______

A. Honey safer choice for relief of cold symptoms.
B. Breathing in steam is a better way to suppress coughs.
C. Honey doesn't work for all the patients with a cold.
D. Over-the-counter medicines are a waste of money.

Where is this text most likely from？ ______

A. A history book.
B. An academic magazine.
C. A medicine textbook.
D. A science fiction.