If you don’t have a whole-home water filter, I’d suggest getting a shower head filter from Amazon. We like this one.
As others have suggested, humidifier is a big help (preferably in the room you sleep in- run it at night).
Moisturizing is key- My son isn’t big on lathering up with lotion but there are a couple of in-shower body moisturizers that can make a big difference.
Welcome the dessert!
this is the one I got. I also have one of their rainfall shower heads. Just perfection