I have been getting an inflamed neck for years now on and off. You can feel when it starts because my neck itches. It feels like pins and needles and it burns. A lot! Its a lot of bumps that spread across the whole front part of my neck. All you want to do is scratch it, but from experience, that only makes it worse. Heat makes it worse as well. 1.000 times worse. I have to keep it cool and keep anything off of my neck, including my hair. It lasts for about a week. When I go to the hospital all they do is poke and prode, and look in awe. I never get an answer or a name for it. I am an african american female, I do not spend that much time in the sun at all. Topical creams help only for a small period of time, but applying them irratates the swelling. This 'rash' sometimes accompanies a cold or bad allergies, but not all the time. In any of the instances I dont recall any new soaps, lotions, detergents, etc. Thank you for reading this.
PS. The picture I just took, symptoms started earlier today, so its not full blown yet.