Red dots on the feet that are particularly itchy may be an allergic reaction to the feet, especially the red dots on the back of the feet, and if accompanied by significant itching, it may be allergic dermatitis or eczema due to allergens. Generally, it is mainly due to allergic factors that lead to local inflammatory allergic reactions, so that red dots appear and irritate the nerves of the epidermis, so that the symptoms of itching arise. In addition, if a fungal infection occurs in the area, red spots will also appear, along with itching, and some of these symptoms may be accompanied by a certain scaling reaction. In addition, red petechiae may also form due to mite allergy or insect bites, accompanied by varying degrees of itchiness.