A few questions - please help!! :(

My brother has schizophrenia and it happened 6 years ago... when he was in university.. he's only 25 now. He graduated (but took him longer than usual) and he's working now. I guess he's got a mild sz. The last 3 days I've been trying to research non-stop about schizophrenia, I want some answers. He acted weird 2 days ago and started shouting for no reason, is that a relapse?? He's on risperdal.... and been decreasing the amount lately till now he's taking 1 gram then that relapse happened after like 6 months of taking 1 gram daily, does that mean he has to increase the amount again? coz my parents want to give him 2 grams now.

I've been reading on other medications and I was wondering how do we know whats best for him? what about abilify?

Does anyone know a really good doctor? I dont really trust the doctors he's been seeing, I just dont feel like they care that much. Is there a really well-known doctor anywhere? whether its U.S or Canada or UK that is specialized in schizophrenia... we'll take him anywhere, I just really want him to be like he was before :( and get cured. I want him to get married and have kids and a normal life. Is there hope? Is there hope he can be off the medications for good? Can hypnosis work? and cure sz? I heard there are psychotherapy using hypnosis. If so, do any of you know good hypnotists?

A really major question I had was whats the cause of schizophrenia? I was told it's genetic. But I dont know any of my family who have schizophrenia, is there a chance it is a cause of the environment or social? and something happened that caused it?

What can I do to help him get cured?

Please help!