Why do you have to wait to do a corrective relaxer?

[Vinyl]

I relaxed my hair today, but the bottom/sides came out stick-straight and the top came out wavy. I really want to do a corrective relaxer, and I was wondering why it's best to wait? I'm just really tired of not being able to wear my real hair out.

 

[amwcah]

This thread should be helpful for you.

http://www.longhaircareforum.com/showthread.php?t=122927&highlight=corrective+relaxer