cabin crew training tests...

[flapsforty]

Hi Scott, with most airlines I know about, the pool session is a single, one-time event.
It might be yearly if your airline is very thorough, but even then it will not entail multiple sessions in the pool.

Unless your allergy is extremely severe, you should be able to cope with this. Have a look at this website for some tips, and also consult your doctor.

There is no need to let your allergy scare you off from becoming a Flight Attendant.