Hello and thanks for posting,

Unfortunately, we are not aware of any hand held device that would help with the discomfort.

Sometimes a warm wheat bag placed around the neck can help that area. Massage is probably the most beneficial as it helps to stimulate blood flow around the area and help with muscle stiffness. A referral to a hospital Pain Clinic might be useful, and a referral can be done by a patient's GP, or hospital specialist. 

There is a NHS website page about help for your pain

and a page where one can search for their local pain services

I hope this reply is of some use, 

Please get back to us if you need any more information or support.  You may find it helpful to talk things through with one of the nurses on our helpline.  The number to call is Freephone 0808 800 4040 and the lines are open from 9am till 5pm Monday to Friday.

Yours sincerely,

Vanda