Gabriel

My Dad had Vascular Dementia and he did have episodes of itching. They were usually on his arms. It was a function of blood flow in that area... and in his legs. There is itching that can be related to Vascular Dementia. There is also itching associated with stress incontinence. There is itching related to hypertension. There is itching related to many different medications. Exelon has a side effect of itching as does Namenda. Itching is not always an allergic reaction and can have many different causes. It is not always associated with a rash. Finding the underlying cause may or may not be easy. I do wish you luck and hope you can find a way to relieve her distress.

Is her Exelon patch on her back? If so you might want to change the patch location to see if the itch location changes... just a guess

Love, deb