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Definition Return to top
Hot tub folliculitis is an infection of the hair follicles that occurs when you come into contact with certain bacteria that live in warm, wet areas.
Causes Return to top
Hot tub folliculitis is caused by the bacteria Pseudomonas aeruginosa. This form of bacteria survives in hot tubs, especially hot tubs made of wood, unless the water's acid and chlorine levels are strictly controlled.
Symptoms Return to top
Symptoms of hot tub folliculitis can be seen within several hours to 2 days after coming into contact with the bacteria.
The rash may be thicker under swimsuit areas, where the material has held the contaminated water in contact with the skin for a longer period of time.
Those who shared the hot tub may have the same rash.
Exams and Tests Return to top
Your health care provider can usually make this diagnosis based on a physical exam and knowing you have recently been in a hot tub. Testing is usually unnecessary.
Treatment Return to top
Treatment may not be needed, as the mild form of the disease usually clears on its own. Anti-itch medications may be used.
In severe cases, your health care provider may prescribe an antibiotic such as ciprofloxacin.
Outlook (Prognosis) Return to top
This condition usually clears without scarring. It may recur if the infected hot tub is not cleaned.
Possible Complications Return to top
When to Contact a Medical Professional Return to top
Call your health care provider if you develop symptoms of hot tub folliculitis.
Prevention Return to top
Careful attention to controlling the acid levels and chlorine content of the hot tub may help to prevent hot tub folliculitis.Update Date: 10/28/2008 Updated by: Michael Lehrer, M.D., Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.