You may also experience itching, burning, pain, or discomfort ... or purple in people with darker skin tones. A neck rash can be itchy or painful and sometimes cause fluid-filled blisters.

Medically reviewed by Casey Gallagher, MD Itchy skin (pruritus) without a rash may be caused by dry skin, allergies, bug ...

A prickly, burning or itchy sensation may also accompany ... including: in the neck near the groin under the arms Heat rash occurs when excessive sweating blocks sweat pores.