Small red dots on the neck, consider the following diseases: 1, pressure purpura, mainly due to crying or vomiting, caused by the local capillary rupture, red blood cell extravasation. It can usually be left untreated and will subside on its own in a week or so. If it is more serious, you need to take oral rutin tablets and vitamin C capsules, as well as compound glycyrrhizin capsules, 3 times a day, 2 capsules a time, and topical furnace glycolic lotion for treatment. 2, consider eczema, in addition to small red spots, can also appear erythema, papules, blisters, vesicles, exudates, crusts and other polymorphic rash, accompanied by a certain itching. For vesicles and exudates, a 2% boric acid solution can be applied topically to dry and crust them. For other rashes, topical denuded ointment, twice a day, can be applied, and oral epinastine hydrochloride capsules, 2 per night, can be taken for anti-allergy and anti-itch treatment.