HELP! How do I deal with a loved one who has erratic mood changes..read more?

I have a relative who has erratic behaviors. She can't just deal with the ';issue at hand';. She's ALL OF NOTHING and makes threats, etc when have a dispute. One minute she is positive and next she is creating a negative, argumentative environment.

No, I cannot ignore her. (that's another story).

How do I deal with someone who just can't seem to be HAPPY for a ';whole day';!!?HELP! How do I deal with a loved one who has erratic mood changes..read more?
Ear plugs work miracles or you can just hug them until they laugh, I have tried that, it works.HELP! How do I deal with a loved one who has erratic mood changes..read more?
well if you must live with such a person n ignorance is d best policy n let their unhapiness be their own....