JanetDOlivia (age 26-months) wears a MedicAlert bracelett. Hers says -- Steroid Dependent; Congenital Adrenal Hyperplasia.
The advantage to MedicAlert is that they keep all of your childs information and can be called 24-hours from anywhere in the world (collect!). Another adavantage is that they have a variety of braceletts and necklaces to fit your needs.
I believe some sort of bracelet/necklace is a MUST for all people with CAH.