Patients with itchy foot rash may be caused by eczema, tinea pedis, urticaria and other causes. 1. Eczema: Eczema is a common inflammation of the superficial dermis and epidermis, and its development may be related to endocrine and metabolic abnormalities, allergen stimulation, immune function abnormalities, mental stress and other reasons, when patients with eczema on the feet, there may be a rash with itching and other conditions. 2. Tinea pedis: tinea pedis is a common skin disease caused by fungal infection of the skin of the foot, which is mainly manifested as a rash, peeling, blisters, itching and other symptoms of the skin between the toes, soles of the feet, heels and lateral edges of the feet, and itchy skin, and itchy rashes on the feet of the patient may be caused by tinea pedis. 3. Urticaria: Urticaria may be triggered by contact with animal dander, dust mites and other factors of allergic reaction, mainly manifested as sudden conscious skin itching, rash, red wind, round, oval or irregular shape, etc. Urticaria patients may appear foot rash itchy and so on. It is recommended that patients seek timely medical examination, clear causes for targeted treatment, in life to avoid scratching the affected area with violence, so as not to cause infection, and pay attention to the observation of the affected area, follow the doctor’s instructions for regular review.