How does irritability dermatitis itch particularly at night to do

Allergic dermatitis, because the patient's main subjective symptom is itching, and itching has a special, especially in the middle of the night when people are quiet, the family must first understand the mechanism of itching, it is because of allergic dermatitis, it releases some cytokines, releases some toxic substances, and later causes some changes in the skin, causing itching. This itching is not transferred by human will, so it is inevitable to show this situation. But first grasp one point, the patient must not scratch the skin, especially the common people some normal use of the method, itching after taking boiling water, salt water, pepper water do not use these irritating substances