Rash neck or acne dilemma. Any assistance to get rid of him?

Erythematous rash on erythema on the neck: question by Ernest F. neck rash or acne. Any advice to get rid of him? I am a man of 32 years and about three years ago started my neck, that to break it, what appears to be acne. Although I do not think it's acne, because I never really an acne problem. I suppose it is possible to go out with acne, not only on the neck, but it looks more like a rash that does not go away! They are full of pus or something. They are just red spots on my neck

Itching Urticarial Rash