Make darn sure he's not acting this way out of severe magnesium deficiency, it's all too common, and I believe my ADHD diagnoses was a mistake because of it. It totally causes nervous system issues and light and sound sensitity.
Is he on any medications for the ADHD?
Opps, when I said "who" - I meant what kind of a doctor? Certainly not the doctors name!
And who diagnosed him? And why aren't they helping?
How old is he and what are his symptoms?