My daughter got a job at a hair salon after graduating from cosmetology school, and she found out she had a serious allergy to latex. They had only used non-latex gloves at school, so she had no idea she couldn't wear latex. She had to go to the hospital for latex allergy treatments because the rash was so bad.
From that day on, she made sure all of her disposable gloves at work were not latex. She also tells her doctor to use non-latex gloves if she has to have an exam. She also can't come into contact with rubber balloons.