is it ok to take a cold shower immediately to cool yourself off from being outside in hot temperature or should I wait a while?
I've been told that you shouldn't do that.
Don't do that. It can put you into shock, which really isn't good. I know it's not comfortable, but you need to wait a while, like 20-30 minutes before getting in a cold shower.
It will be good for your pores, I don't think It will put you into shock considering the temperatures aren't to high or low