I gotta agree with Jason here.
How is anyone supposed to say anything intelligent in response to the paucity of useful info you have actually provided us.
Can I recommend you read this:
I am trying to set cookie using below code:
<cfccokie name="mycookie" value="test">
And when I am not able to access the same on another web page.
But , when I write the same in header section, I am able to reterive the same on another page.
I am facing this issue on CF10.