***Raises Hand**** Neuro issues here!Are any of your kids on Topamax for the seizures? That is the only med that will control my son's seizures and it really is a godsend but the side effects are weight loss (don't need any help in that area!!!) and decreased sweating (has enough trouble in the heat without adding that to it). When my son was first diagnosed with cf I tried to link the Topamax to his high sweat test results, but didn't find anything online and the doctors assured me that was not the reason for the high sweat tests. And then additional testing revealed other things, so that blew my chance of denial out of the water.As to your original question about salty skin - he's not salty.