There are many reasons for red and itchy skin, the most common cause is allergic dermatitis, but also eczema, hives and so on.
1. Allergic dermatitis: generally manifested as redness, swelling, itching and other symptoms, mostly caused by contact with allergic substances, such as consumption of seafood, dairy, eggs, contact with pollen, dust mites, formaldehyde, etc., if necessary, you can go to the hospital to check the allergens.
2. Eczema: skin inflammatory reaction caused by a variety of internal and external factors can also lead to itchy skin, the skin will have erythema, pimples, blisters, and severe can lead to skin erosion, oozing.
3. Urticaria: conscious itching occurs first, and then the itchy parts will appear pale white or red masses, surrounded by a red halo, some patients may also appear nausea, vomiting, headache and other symptoms.
It is recommended that patients with red, itchy skin go to the hospital in time to find out the cause and follow the doctor’s instructions for standardized treatment.