Only thing I can think of (and they'll probably give you anyway) is if an Epipen is needed. Then you should make sure they give you a letter that you take with you if you ever travel on a plane that allows the epipen on board with you.

Also, there are lots of medical alert bracelets available, but I only found one small enough to fit my DD (then at 1yr, but even now at 2.5) They are silicone and you get them printed with whatever you want. I think the minimum number you can order is 10 but I wasted money on an engraved plate one and these are much better for a child IMO. If you need any, PM and I will try and find the details for you.

Good luck, hope none of the above is necessary for you.