There are small red dots like blood spots under the neck skin, which are considered as cherry angiomas, pressure purpura, etc. All of them do not need special treatment, and can be removed by physical therapy if necessary. 1. Cherry hemangioma: cherry hemangioma is related to the proliferation and expansion of capillaries in the skin, generally do not need special treatment, if you feel that it affects the aesthetics, you can remove it through physical therapy such as carbon dioxide laser. 2. Pressure purpura: after a violent cough or vomiting, the pressure inside the blood vessels will increase, and small blood vessels in the skin will rupture, this situation generally does not require special treatment, and the small red dots will disappear after a period of time. Neck subcutaneous small red spots, should be timely to go to the hospital, clear diagnosis for the cause of the symptomatic treatment.