I once had a case of scabies, which looked and felt very much like what you describe. Picked it up off a resident when I was working in an elder care facility.
Was about 15 years ago, and just got some cream from the doctor. Can't remember what it was, but it worked.
I was paranoid about every little itch for 2 or 3 years after.
The photos look very much like the elderly lady's skin who had the scabies. Poor lady was covered, all over her body. Doctor was treating HER for hives.
Saline Baths can't hurt, but only luke warm. Make sure you use enough salt. Needs to be stronger than normal saline, which is 0.9%. This is about 1 teaspoon to an imperial pint of water. This will be very drying on skin, so teatree oil may be beneficial after. If the itching is too bad, cold compresses may help. Heat will increase the itch.
My thoughts are with you.
In olden times people used to dig holes in their skin to try to stop the itching.!!!
Not sure what else to advise, but don't ignore it.
Doesn't sound like shingles, which tends to be more painful than itchy, but difficult to say without seeing it in real life.
Good luck.
Let us know progress.
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