I do not have neck pain. I did have neck surgery 3 years ago for an accident where i had a spur that punctured my spinal cord. The neuro surg shaved off the spur and found 2 bulging discs in my neck but decided to leave it alone. I have been left with numbness in my right thumb, but have never experienced or had problems with this itching on the left arm only. The itching started coming and going just in the past few weeks. I feel it is getting worse and i need relief.
I work outside. but i cant really tell you that sun makes it worse. The itching is pretty much all the time now. It does seem that as the days get dryer coming into the fall that i am itching more. I have tried to use moisturizing lotions and limit my showering to just enough time to soap up good in warm water and then get out. I stopped taking real hot showers. I am using a moisturizing bath soap too.