Itchy red skin on the face is considered to be allergy, seborrheic dermatitis, psoriasis and so on.
1. Allergy: If the patient is allergic, the skin on the face is exposed to allergens, such as pollen, mites, etc., a metamorphic reaction will occur, and after the allergy, the cells will release some inflammatory factors, resulting in vasodilatation, oozing and so on, which will be manifested in the face of the skin itchy and red.
2. Seborrheic dermatitis: seborrheic dermatitis and sebum secretion, local microbial infections and other factors have a relationship, which occurs in the seborrheic areas of chronic inflammatory skin diseases, mainly manifested as erythematous rashes, the surface is attached to the greasy scales or scabs, usually accompanied by itching symptoms.
3. Psoriasis: psoriasis is a chronic scaly skin disease formed by the interaction of genetic, environmental and immune-mediated factors, with the main symptom of red patches on the skin, covered with white scales, and symptoms such as itching, burning and pain.
Itchy red skin on the face, you should go to the hospital for a detailed examination, for the cause of the symptomatic treatment.