Got advice about chemical straightening?

i have think frizzy, curly, hair and thinking about chemically straightening it. should i do it? i already use a straightener and when i do it makes my hair look so much nicer but its a hassle so i thought i would just get it permanently done. if i do it should i worry about side defects or what i just don't know.Got advice about chemical straightening?
3 words;


I DOESN'T WORK


i have the same kind of hair


I've gotten 2 relaxers which is supposed to ';chemically straighten'; my hair


it lasted 1 week.


The are also very painful. They burn your scalp %26amp; makes your head very itchy


It does look nice in the end but like i said,


It doesn't last long


It hurts


%26amp; its expensiveeGot advice about chemical straightening?
Don't do it, it'll mess it up like this:


http://i.ehow.com/images/GlobalPhoto/Art鈥?/a>