I have extremely sentive skin too. For the people who got a rash what are you allergic too? I did not think to worry about this because I am allergic to all metals except gold and plantium (even when it says hypoalagenic metal I am still allergic to it) so I did not think I would have a problem because there is no metal that i know if. But I am allergic to other things like what ever is in detergents., some times I just I just cannot figure out what set off my skin this time. So I may just buy a cover so I do not need to worry though.