What are the reasons for repeated facial allergies?

Recurrent facial allergies are also quite common. Because the face is an exposed part of the body, once allergies occur, it often affects the appearance and causes great psychological pressure. There are many reasons for recurrent facial allergies, including the usual nervous and excited psychology. In addition, excessively dry weather, insect bites, allergic constitution, etc. also have important relationships.

1. Excessive tension and excitement

Recurrent itching may be caused by mental stress. Excessive tension, excitement, depression, fatigue, anxiety, irritability and changes in living environment may cause skin itching. Increased skin temperature or decreased sebaceous gland secretion, as well as changes in intracellular components, may also cause skin itching.

2. Changes in weather

The recurring cause of skin itching may be due to changes in the weather. In addition to humid weather, the climate is cold and dry in winter, and the human skin becomes dry and rough, and even the epidermis peels off, which can easily irritate the nerve endings in the skin and cause itching. Skin itching can be divided into localized and systemic. The most common localized itching is skin itching of the vulva, perianal area, and scalp. Systemic pruritus can be divided into senile, seasonal, etc. For example, winter pruritus is more common in winter.

3. Insect bite dermatitis

Repeated skin itching may be caused by mosquito bites, which can lead to insect bite dermatitis and produce itching symptoms. Or it may be due to food allergies. For example, certain foods such as seafood, beef and mutton, or some fruits such as mangoes can easily become allergens, causing skin itching.

4. Physical or chemical stimulation

Recurrent skin itching may be caused by the patient's exposure to some physical or chemical stimuli. For example, some people will feel itchy skin when they come into contact with substances such as hair and pollen. It may also be caused by the stimulation of some cosmetics or alkaline soaps, which may cause skin itching in patients.