About thirty odd years ago to help supplement my regular income a mate got me a night shift job in a supermarket stacking shelves, the work was easy and the job paid really well but after a few days the skin on my arms was inflamed and extremely painful, turned out I was having an allergic reaction to the adhesives used in the cardboard boxes.
The store manager stated that he had occasionally seen this type of reaction from staff members before but was not aware of a cure or work around, anyway I couldn't continue so I had to pack it in and it was pretty much the only thing I was ever allergic to, parents of children using these products should be made aware just in case.