Hi there. I have traveld a lot ith my DD but only within the USA. What I have in her diaper bag is a little pouch . One pocket has a note from her Doctor stating that she has CAH and needs to carry syringes for her medicine. In the other pouch has the emergency card that CARES sent to me. Inside I have her syringe and medicine kit. Before I go throught the security line I alert them that I am carying syringes for my DD. I NEVER get any problems from security. A few times I have had them look in the pouch but that is all. As Long as you have a note that should be fine. Make sure you have plenty of meds and have fun!!!