People really need to sort if the itch is caused by a skin condition,ie Eczema or a nerve issue/MS (or some thing else)
I sometimes get itchy on my back at night while in bed it gets in the way of sleeping honestly. At first I thought it was bed bugs or something else but then learned that it’s yet another symptom of this thing.
Nerve endings as told to me by dermatologist I worked for 17 years for. I use Clobetasol Propinate solution for scalp when needed and good creams for skin keep moisturizing and goid skin oils also.
Consider seeing a dermatoligist
My hands get very itchy occasionally. Underarms and back too. Annoying symptom indeed.