The rash consisted of multiple discrete papules ... would be consistent with pseudomonas. Hot tub folliculitis lesions will erupt on the trunk or buttocks after a person sits in a hot tub.

It presents as bumps or a rash on your skin ... As its name suggests, hot tub folliculitis forms after spending too much time in a hot tub containing the bacteria Pseudomonas aeruginosa, according ...

In some cases, healthy individuals could develop mild infections, such as swimmer’s ear (otitis externa) or a hot tub rash (pseudomonas folliculitis), if they come into contact with the bacteria.