Here is the thing---you must moisturize with something thick---not in a pump but a pot or a tube----Vaseline is the best thing to use if your extremely dry.
The trick is to moisturize from head to toe within 5 mins of exiting the shower/bath before you towel off---then blot what moisture is left.
Use a mild soap---soaps with heavy perfumes are tabooo---full of alchohol!
Ivory and Dial and Irish Spring? you might as well go to lowes and buy yourself a sander or a grinder---they are the harshest things out there!!!
Use Dove or Cetaphil or if you have to have a deoderant soap Lever 2000 is ok.
Increase the humidity in your home---low humidity saps the moisture.
Wear clothing that breathes--cotton is best,,, avoid itchy fabrics like wool and polyesters. Being overheated makes you itch too.....use cold packs, ice or a bag of frozen veggies if you have an itch----don't scratch---dry skin is fragile and you then will open yourself to infection. Put some moisturizer in the fridge--when you have an itch--get a glob and rub it in--
If you do these things---I promise you will see improvement.....these are instructions that a dermatologist provides....it does work--just moisturize frequently, dont use witch hazel or rubbing alcohol or peroxide!!!!