The common causes of red skin and itchy skin include urticaria, eczema, contact dermatitis, etc., and should be promptly diagnosed to identify the cause of the disease.
1. Hives: the common cause of this disease is mainly some allergens, including ultraviolet light, animal protein, pollen, animal fur, some drugs, etc., after contact with these allergens, can cause vasodilatation of the skin as well as increase in vascular permeability, followed by redness, swelling and itching of the skin and other symptoms.
2. Eczema: the cause of this disease is unknown, may be related to food, inhalants, microbial infections, poor environment, neuropsychiatric factors, etc., lesions can be manifested as repeated skin erythema, pimples, vesicles, accompanied by varying degrees of itching and other symptoms.
3. Contact dermatitis: this disease can be caused by skin contact with some irritating substances, such as organic solvents, alcohol, bleach, chemicals, animal toxins, etc., skin contact with these sensitizers can lead to skin contact parts of the erythema, pimples, blisters, and may be accompanied by itching, burning pain and other symptoms.
Patients with a red patch of skin is also itchy, it is recommended to the regular hospital in time, clear cause, under the guidance of the doctor for targeted treatment, to avoid delaying the condition.