Which physical findings are characteristic of Pseudomonas folliculitis (hot tub folliculitis)?

Updated: Oct 02, 2020
  • Author: Charles B Toner, MD; Chief Editor: Dirk M Elston, MD  more...
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Answer

The predominant manifestation of Pseudomonas folliculitis is dermatitis (79%).

Pseudomonas folliculitis is characterized by follicular papules, vesicles, and pustules, which may be crusted. Lesions involve exposed skin, but they usually spare the face, the neck, the soles, and the palms. Lesions progress to erythematous papulopustules that range in size from 2-10 mm in diameter, with a pinpoint central pustule. The rash is not unique in appearance and is most often confused with insect bites. See the images below.


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