Medical care in the US is very expensive. Unless one has arranged employment here that includes health insurance, it is very difficult to afford medical care here. Even when health insurance is provided by an employer, there is usually a waiting period of 6 months to one year before coverage begins, leaving the patient uninsured. Thanks to Obama's health care plan, insurance companies can no longer deny coverage to people with chronic health conditions, so this is no longer a barrier.
Your brother should join this group and learn from other thals about how they manage their treatment and their lives. He needs to find some new perspective among people who understand that thals ARE normal. We are also on Facebook and it's easy to interact. It may be possible to do better in India than he is doing now. Talking to others can only help him find some solutions. Please encourage him to join.