Red dots on the neck of the feet may be related to allergic purpura, urticaria, etc., allergic purpura, urticaria can be treated with oral antihistamines, such as loratadine, cetirizine, etc., urticaria can also be used externally with glycerine lotion, zinc oxide lotion and other medications to stop itching treatment. 1. Allergic purpura: mainly manifested as skin petechiae, deep red, and pressure does not fade, therefore, patients with allergic purpura can appear on the neck of the feet with red spots. For purpura, patients need to take antihistamines for treatment, such as loratadine, cetirizine, etc., in addition to vitamin C and other drugs for adjuvant therapy. 2. Urticaria: some patients appear on the neck of the feet with red spots may also be the manifestation of urticaria, often accompanied by different degrees of itching, for this case, patients need to take oral antihistamine treatment, commonly used drugs such as chlortetracycline, cetirizine, etc., and can also be used externally with glycerine lotion, zinc oxide lotion, and other medications to stop the itching process. There are other causes of red spots on the neck of the feet, it is recommended that patients go to the hospital in time to find out the cause of the disease, standardized treatment, so as not to delay the condition. Drugs should be used under the guidance of a doctor.