Red dots on the feet, and very itchy, may be related to eczema, contact dermatitis and hives and other diseases. 1. Eczema is a skin inflammation caused by a variety of factors, including external factors such as drugs, food, environmental factors, etc., and internal factors related to autoimmunity, infection and endocrine abnormalities, manifested as skin erythema, pimples, blisters with itchy symptoms. 2. Contact dermatitis is due to local skin contact with irritating substances or allergic substances and an allergic reaction occurs, manifested as contact with the site of erythema, papules, blisters with itching or pain, and its most important feature is that the site of the onset of the general more limited, or there is a history of obvious contact. 3. Urticaria is related to infections, food and drug allergies and other factors, manifested as erythema of the skin, wind masses with obvious itching. As there are many causes of red spots on the skin of the feet with itching, you need to ask your doctor for a face-to-face consultation for specific cases.