The cause of psoriasis is red and red.

Psoriatic systemic redness and long herpes causes include mental factors, excessive inflammatory reaction, immune response, etc., specific analysis is as follows:

1. mental factors

If the patient has a long time of pressure, the hormone level in the body is abnormal, stimulating the skin, causing skin lesions, causing systemic skin redness and long herpes.

2. excessive inflammatory reaction

If the patient does not pay attention to the affected area after the disease, the affected skin will be broken, leading to pathogen invasion, causing inflammatory reaction, causing the above phenomenon.

3. immune response

Due to the patient during the disease, lymphocyte function disorders, affecting the immune system, resulting in abnormal immune response, causing systemic long herpes and red.