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How do you prevent and treat the common cold? Handwashing and zinc may be best for prevention whereas acetaminophen, ibuprofen and perhaps antihistamine-decongestant combinations are the recommended treatments, according to a review in CMAJ (Canadian Medical Association Journal).
The common cold is well, common, affecting adults approximately 2-3 times a year and children under age 2 approximately 6 times a year. Symptoms such as sore throat, stuffy or runny nose, cough and malaise are usually worse in days 1-3 and can last 7-10 days, sometimes as long as 3 weeks.
"Although self-limiting, the common cold is highly prevalent and may be debilitating. It causes declines in function and productivity at work and may affect other activities such as driving," write Drs. Michael Allan, Department of Family Medicine, University of Alberta, Edmonton, and Bruce Arroll, Department of General Practice and Primary Health Care, University of Auckland, New Zealand.
Colds are also costly. It is estimated that direct medical costs in the United States, including physician visits, secondary infections and medications for colds, were an estimated $17 billion a year in 1997. Indirect costs from missed work for illness or to look after a sick child were an estimated $25 billion per year.
Most colds are caused by viruses, with only about 5% of clinically diagnosed colds having a bacterial infection, yet antibiotics are sometimes used inappropriately for viral infections.
The review, aimed at physicians and patients, looked at available evidence for both traditional and nontraditional approaches for preventing and alleviating colds.
Other approaches and treatments
According to the evidence, the benefits of frequently used remedies such as ginseng, (found in ColdFX), gargling, vapour rubs and homeopathy are unclear. Cough medicines show no benefit in children but may offer slight benefit in adults. Honey has a slight effect in relieving cough symptoms in children over age 1. Vitamin C and antibiotics show no benefit, and misused antibiotics can have associated harms.
The authors note that the evidence for preventing and treating colds is often of poor quality and has inconsistent results.
"Much more evidence now exists in this area, but many uncertainties remain regarding interventions to prevent and treat the common cold," write the authors. "We focused on RCTs and systematic reviews and meta-analyses of RCTs for therapy, but few of the studies had a low risk of bias. However, many of the results were inconsistent and had small effects (e.g., vitamin C), which arouses suspicion that any noted benefit may represent bias rather than a true effect."
Article adapted by Medical News Today from original press release. Click 'references' tab above for source.
Visit our Infectious Diseases / Bacteria / Viruses category page for the latest news on this subject.
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11 Mar. 2014. <http://www.medicalnewstoday.com/releases/271786>
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