How do you cope with a schizophrenic parent?

A couple of years ago my mother had to be admitted to hospital with a mild case of Schizophrenia, She has since been released and now resides at home with my father whilst taking medication. her bevaiour is erratic to say the least and she has developed a stong religious view since then. I'm finding it really difficult to cope with and was wondering if anyone else out there has been through this before. It gets me down a lot and there are times when her abnormal behaviour seriously frustrates me and makes me angry. It can be embarassing at times and although i feel pity for her it is still overcome by the irritation i feel for having to see her like this. Can anyone help me to take control of my emotions with regards to this?
Best answer:
Can't be much harder to endure. I did it and it never seems to end. Get away as much as you can. Don't try to take the burden of figuring it out. All your emotions are natural. Don't keep feeling the guilt. Other than that, what can you really do? Can you move away? I had to do that. Are you still mad because of the things of your childhood? You can yell at parents for this. It doesn't sink in, but makes you resolve some of the hurt. Hang in there.