Gargling and respiratory infections.
In a randomized, controlled trial involving 387 healthy volunteers aged 18-65 years, a URTI occurred in 41% of control subjects, 30% of subjects randomized to gargle with water, and 37% of subjects randomized to gargle with diluted povidone-iodine during a 60-day period.
The difference in URTI incidence between the control and water-gargling groups was significant, the investigators reported (Am. J. Prev. Med. 2005;29:302-7).
Furthermore, when water garglers developed a URTI, bronchial symptoms were attenuated; the mean peak score in bronchial symptoms was 1.40 in the control group, 0.97 in the water-gargling group, and 1.41 in the povidone-iodine garglers.
Garglers were asked to use 20 mL of water or diluted povidone-iodine for about 15 seconds three times consecutively, and to repeat at least three times daily. Subjects were followed for at least 60 days.
Water gargling is a virtually cost-free modality that could "appreciably benefit people both physically and economically around the world," the authors concluded.
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|Title Annotation:||CLINICAL CAPSULES|
|Publication:||Internal Medicine News|
|Date:||Dec 15, 2005|
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