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Fact Sheet Series:
What is Pseudomonas folliculitis?
Pseudomonas
folliculitis is an inflammation of the hair follicles caused by infection
with the bacteria P. aeruginosa. It has been reported in persons
using hot tubs, whirlpools, saunas, swimming pools, waterslides and
physiotherapy pools.
Who gets Pseudomonas folliculitis?
Any person exposed to water contaminated with P. aeurginosa can
get Pseudomonas folliculitis.
Where is P. aeruginosa found?
Pseudomonas aeruginosa thrives in warm and moist areas
and is commonly found in soil, sinks and drains, shower-floors, carpeting
and even tap water.
What are the symptoms of Pseudomonas folliculitis?
Pseudomonas folliculitis first appears as itchy bumps and
develops into dark red tender nodules and/or small pus-filled pimples. The
eruptions typically involve the trunk and upper parts of the arms and
legs. The rash can be extensive and may affect all areas of the body
except the palms of the hands and soles of the feet. The rash may be
accompanied by headache, nausea, vomiting, abdominal cramps, sore throat,
rhinitis, sore eyes, and fever.
The rash may be more severe under areas covered by a
swimsuit where the material held the contaminated water in contact with
the skin for a longer period of time.
How soon after exposures do symptoms of Pseudomonas
folliculitis appear?
The incubation period for "Pseudomonas folliculitis"
is usually 48 hours (range 8 hours to 5 days) after exposure to
contaminated water.
How can Pseudomonas folliculitis be diagnosed?
Pseudomonas aeruginosa can often be cultured from pus-filled
pimples on the skin.
What is the treatment for Pseudomonas folliculitis?
The rash associated with this infection will
usually go away on its own and treatment may not be needed.
"Anti-itch" medications may be used to control the itching.
Why are whirlpools and hot tubs
favorable for Pseudomonas aeruginosa?
- Warmer water temperatures enhance the growth of P. aeruginosa.
- Warmer water temperatures of whirlpools and hot tubs promote the
expansion of the pores of the hair follicles allowing entrance to
bacteria.
- Organic matter commonly found on human skin provide nutrients for P.
aeruginosa to grow and multiply.
- Turbulence in the water interferes with the maintenance of
disinfectant levels, especially in whirlpools made of wood.
How can Pseudomonas folliculitis be prevented?
Proper maintenance and control of the pH and disinfectant levels will
prevent the growth of "Pseudomonas folliculitis" in hot
water supplies.
For more information, contact your
Local
Public Health Department
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Last Revised: June 21, 2011
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