Pseudomonas dermatitis overview
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Pseudomonas dermatitis or hot-tub rash is an infection of the skin. The skin may become itchy and progress to a bumpy red rash that may become tender. There may also be pus-filled blisters that are usually found surrounding hair follicles. Because a swimsuit can keep contaminated water in longer contact with the skin, the rash may be worse under a person’s swimsuit.
Causes
Pseudomonas dermatitis or hot-tub rash is often caused by the bacteria "Pseudomonas aeruginosa". They are commonly found in the environment (water, soil). Most rashes clear up in a few days without medical treatment. However, if your rash persists, consult your healthcare provider. Hot-tub rash is spread by direct skin contact with contaminated water. The rash usually occurs within a few days of swimming in poorly maintained hot tubs or spas but can also be spread by swimming in a contaminated pool or lake.
History and Symptoms
The skin may become itchy and progress to a bumpy red rash that may become tender. There may also be pus-filled blisters that are usually found surrounding hair follicles.
Prevention
Be aware that hot-tubs and spas have warmer water than pools, so chlorine or other disinfectants break down faster. This leaves hot tubs and spas at risk for the spread of RWIs. Therefore, ask your pool manager about the disinfectant and pH testing program at your hot-tub or pool.
Ensuring frequent testing, control of disinfectant (usually chlorine or bromine) levels, and pH control are likely to prevent the spread of dermatitis.