Yes Salt can dry out your skin...or at least Salt Water can like the Ocean
Because seawater has salt in it and salt is hygroscopic and will dehydrate skin.
A salt scrub exfoliates the skin. It does this by helping the flow of blood to your skin. Salt scrubs are best for oily skin. Using salt scrub will moisturize, exfoliate and smooth in addition to dry damaged skin.
Because of the salt in the air.
No. It will dry your skin and since it has salt in it, your skin might break out more. (actually, it bepends on your skin and blood) Mostly though you will stay the SAME!
Normally it does not. It may, only if it is adulterated with some unauthorized chemicals or substances.
Did you mean Iching? Itching is a side effect of dry skin, salt can cause dry skin. Reducing the amount of salt can reduce the effects. Ich is a fungal infection that usually affects fish in freshwater tanks as salt kills infections. A way to prevent this is to add a solution to the water in your tank that kills Ich (ask the people at a pet store).
Its most likely just dry skin. Cut down your sea salt soaks if you're still doing those. The salt can be drying. Dab a little bit of vitamin E oil on the outside of your lip to moisturize it. If you still have problems with it, or dont think its dry skin, go see your piercer :)
Salt water is great for acne. You could cleanse your skin with salt water at the beach or you can make salt water at home. All you need to do is mix a few tablespoons of salt into your bath. (I'd prefer using sea salt.) The salt may sting a bit, but that's normal. When your done, moisturize a bit with lotion so you won't dry your skin. If you have sensitive skin, I recommend you don't try this technique.
Yes if you are using a chlorinator. salt is sodium chloride and the chlorinator converts it to sodium hypo-chloride which is chlorine.
No, they have wet slimy skin. Reptiles have dry skin.
Salt removes moisture b'coz salt is deliquescent in nature.
Taking a bath in Epson salt once or twice a week will help with your dry skin in the winter. You should also put on plenty of lotion every time you take a bath. This is the best way that you can prevent dry skin before it happens.