What is skin allergy itching?

Skin allergies and itching are mainly due to the patient showing an allergic reaction. The specific factors for the formation of this allergic reaction include diet, inhalation of allergic particles or contact with allergic substances. Therefore, the skin will show allergic reactions. change. This allergy is mainly caused by allergens stimulate skin tissue after a certain inflammatory reaction, especially mast cells in skin tissue show a certain degranulation, such as the release of histamine, stimulate the surrounding nerve tissue and capillaries, forming a certain edema and itching symptoms, therefore, then the skin may produce a certain itching. Of course, it may also be due to other systemic factors caused by skin itching.