Antibacterial
soap overuse
may help spread disease.
ANAHEIM,
Calif., Aug. 1, 2000
Similarly,
bacteria can directly jump from a person with dermatitis to an
uninfected person when they shake hands, she said. “There is nothing
quite as good to spread bacteria as hand eczema,” O’Donoghue said.
Dr. William Baugh, chief of dermatology at the Beaufort Naval Hospital
in Beaufort, S.C., agreed. “I’ve seen patients who have developed
hand eczema from these [antibacterial] products,” he said. “It
certainly can occur [and spread].” Ironically, the very people
who believe that frequent hand-washing with antibacterials will
ward off disease are most likely to get caught up in the vicious
cycle, the experts said. “When I ask patients [with eczema] how
often they wash their hands, they say 20 to 25 times a day,” Baugh
said. “They think they are being good citizens by washing frequently.
But you can over do a good thing.” Plus, the ease of pump dispensers
is leading people to wash more frequently, O’Donoghue said. There’s
no doubt the products are widespread: A recent survey found that
nearly half of 1,100 liquid and solid soaps contain antibacterial
agents.
From
a dermatologist’s point of view, antibacterials are among the
most worrisome products contributing to skin problems, O’Donoghue
said. That’s because the same detergent chemicals that kill
bacteria wreak havoc with the skin on the hands, Baugh explained.
“They
literally strip away fatty acids, moisture and amino acid from
the skin,” O’Donoghue said. “They increase dryness, increase
roughness and disturb the healthy growth process.” Overuse
of antibacterials is worse than frequent use of other soaps
as chemicals in the detergents strip away the naturally protective
fats and oils on the skin, Baugh said. “The fist thing to correct
the condition is to remove the offending product,” Baugh said.
Yet patients are often disappointed when told to use non-detergent
products that don’t eliminate the fat layers, he said. Eczema
can be treated with standard emollients that replace oils in
the hands, he added.
THE
SUPERBUG DEBATE
Dr. Eli Perencevich, a research fellow in infectious diseases at Beth Israel
Deaconess Medical Center in Boston, said he wishes people would skip the antibacterial
products altogether, pointing to lab studies that link them to the emergence
of superbugs. “No one has ever been able to prove that using antibacterial
soaps meant that anyone was better off than those using standard soap,” said
Perencevich, who performed the recent soap survey. “However, there are [lab]
studies that suggest use of such products kill off the sensitive bacteria,
leaving [behind] hardier bacteria such as E. Coli and staphylococcus aureus,
which could be detrimental to health,” said Perencevich. “The fear is that
this process will result in bacteria that live longer,” he said. That fear
may be misplaced, said industry representatives. “The rising incidence of antibiotic-resistant
bacteria is a serious worldwide concern,” said Dr. Jerry McEwen, vice president
for science at the Cosmetic, Toiletry and Fragrance Association. “There is
no real-life evidence that antibacterial products — as they are normally used
in hospitals, in food preparation and in people’s homes — contribute to bacterial
resistance. “While some studies have shown that antibacterial ingredients may
promote resistant bacteria, these studies have been done under controlled laboratory
conditions that do not reflect what happens to bacteria that consumers encounter
in the real world.”
While
the debate over antibacterials and superbugs continues, what
is certain in the real world, O’Donoghue said, is that people
who use the products can end up with serious skin diseases
that need an expert’s help to correct.
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