The face is suddenly very itchy, may be related to contact dermatitis, solar urticaria, solar dermatitis and other causes.
1. Contact dermatitis: face contact with allergenic substances such as skin care products or cosmetics can cause abnormal immunity of the body and symptoms such as itching, redness and swelling of the face.
2. Solar urticaria: patients exposed to ultraviolet rays or with atopic constitution, itchy and clammy skin occurs within minutes after exposure to visible light.
3. Solar dermatitis: acute facial skin inflammation caused by strong sunlight exposure, itching, flushing, swelling and other phenomena.
It is recommended that the face suddenly very itchy people go to the hospital in a timely manner, to clarify the cause of the disease, under the guidance of the doctor for standardized treatment.