That happens to me too- except my hair doesn't get wet- generally its my face, neck, back, shoulders that do it the most. If I am in really cold air conditioning, it does make things better. I don't do it all the time when I am nervous- it seems to happen off and on.
I have actually purchased a clear, unscented gel deoderant and started putting it all over my face, neck- anywhere I usually "stress sweat". It feels a bit sticky at first- but once it dries it does stop me from sweating.
I carry the gel stick with me and I may put extra on during the day if needed. I have never detoxed before- so I think it is a result of stress. It happens to me a lot when I am speaking to someone and feel nervous about it. It sucks... good luck and I hope you find some good gel. After a while it will become part of your "getting ready" list in the AM. Good luck! I imagine if you put it really close to your hairline- it might make things better.