Hiya, Jac, and welcome to SkinCell!
Hi, I'm Jac, mother of T, a six year old with vitiligo, eczema, and high functioning autism (Asperger's Syndrome), which is a fun combination to deal with!
Oi, yes, that would be wicked fun! Not! My son (now in his 30s) also has Asperger's syndrome, so I know how important it is for things to be just right in his world. I'm sorry I haven't any good tips for getting the sunscreen on him--maybe someone else has some input.
totalfolly