I have very dry skin and occasional dry skin.

Yes, moisturizers help.

Sometimes I get an allergy to soap and or laundry soap. It can be a product I've been using for a while -- maybe the manufacturers change the formulas, don't know. If it's laundry soap, you're literally rolling in the aggravant in sleep.

Once my underarms were so itchy I couldn't hardly stand it. I had to change a deodorant I've been using for decades.

Keep us posted on whether you find a remedy. I'm always interested in itching problems.