Thank you so much everyone who has posted here; I'm really grateful. Hope I'm replying in a place where you can all receive my thanks!
It's my Mum - and she has tried a couple of complementary therapies including homoepathic sulpher; nutritional supplements etc. to some effect (though she won't admit it!) The itching is now only on her head rather than on her whole body.
Tried the bottled water - no good.
No new carpets; no change in lotions and creams. She has spent over £400 now on alternatives and dermatologists and is unwilling to cough up more 'for things that don't work' (which tells you her state of mind!)
I have suggested she talks to the doctor about blood pressure tablets. That may well be it.
She won't consider anything that would deal with emotions - which I'm sure must be at the root of it, although she's actually happier now than she ever has been in her life. Won't go to homeopath either (the sulpher came from my stocks). Doesn't believe in kinesiology etc. so no way I can get her to one...wish I could!
So I think we are at an impasse...She's got a lot of Leo in her chart so she won't be 'told' ! But fingers crossed for the blood pressure tabs.
Thanks again. Very grateful.