I have a red rash on my neck, I have

Patient: I have a red rash on my neck, I have had it for about 2 months, it is very itchy and sore. It looks almost like chicken skin textured and it has spread from one side of my neck to the other. Could you tell me what it is? I can provide a photo of needed.

Images:
I have a red rash on my nec...-1

Doctor: