A neck rash, or dermatitis, is skin inflammation and irritation that causes a change in appearance and texture on the front, sides, or back of the neck. The appearance of a neck rash depends on ...
A reddish-purple, bruise-like 'petechial' rash caused by blood leaking into the tissues under the skin - crucially, it doesn't disappear if you roll a glass over it. Fever, vomiting, cold hands and ...