Redirect dir trickles down to subdomains too (help)

[ZeroFill]

I have this redirect setup: /survey => http://survey.domain.com

the problem is that http://survey.domain.com/survey/ will send me back to http://survey.domain.com/.

all the redirect is supposed to do is send users who type in http://domain.com/survey/ => http://survey.domain.com

Problem: Redirected directories are included in subdomains.
Solution: make redirected domain apply to that one specific dir.

so if one wanted to redirect http://survey.domain.com/survey/, the redirect would be setup as /survey/survey => http://whatever.com