Wow he still has that? When Yuna had that there was no bumps, just patches of hair missing- just like the pictures. Did you try medicated shampoo yet?
I am going to take a guess that just a FOOD test would be between $100-$200 and maybe the same for natural allergens. I think I got 3 tests done on Sara- this was about 6 years ago- it was about $450 for all of the tests. There were 3 different ones.
I am thinking of doing this for Tidus too.