Red, swollen and itchy hands and feet may be related to contact dermatitis, fungal infections, external stimuli and other factors.
1. contact dermatitis: when the human body hands and feet area skin contact with certain substances such as metal products, chemical agents and other allergies, the body will be due to the allergic substances of the immune-mediated reaction and allergic reaction, showing redness, swelling and itching in the hands and feet area.
2. Fungal infection: when the skin of the hands and feet are infected by fungi, it will cause tinea cruris, which will cause redness, swelling and itching of the hands and feet, and can also be manifested as erosion, keratinization, cracking and other symptoms of the hands and feet.
3. External stimulation: frostbite, scalding, chemical burns, etc., can also produce red, swollen and itchy hands and feet, usually accompanied by pain.
Patients with red, swollen and itchy hands and feet should seek medical attention in a timely manner to clarify the cause of standardized treatment.