There's no red streak marks on the arm that's a good sign
could happen to any of us agreed, receptivity to various minor infections ranges person to person and time to time
Agreed your fam doctor w be fine and keeping it clean and a topical ointment is best until he prescribes something specific based on a culture
This is a noted concern with the boon of reef aquariums in classrooms, elementary classrooms where receptivity to infection is really high compared to healthy adults
Kids are notorious cross contaminators if I recall 1980s correctly (classic finger to nose technique) a marine tank in a kid's classroom is a study in medical aseptic technique if you don't want to risk harm as much as it's a study of marine life. TBH, in an elementary setting with ready access to really small kids who will inevitably interact with the tank, or walk across a water splash and track it every where, the case can be made that the liability is too great for some.
A freshwater system isn't quite the same infection level risk, reef systems are specifically in the category of human infection potential as absolutely possible for any of us. I don't take any precautions whatsoever with my reef including palys, but if it zaps me one day I'll not be surprised. My kiddo wore gloves when handling but I never do. Very helpful thread very helpful documentation, the next twenty biology teacher threads researching reefs in the classroom can consider details here to keep the necessary medical control perspective, which is really good for a science classroom anyway.
0% of the threads I saw on the matter regarding reefs in elementary classrooms began with the safety handling aspects, they were always just about the interactions w kids and animals.