What if the weather is hot and allergic? Pray for the great gods.

Skin allergy is also called "sensitive" skin. From a medical point of view, skin allergy mainly refers to the abnormal phenomena such as redness, itching, peeling and allergic dermatitis when the skin is stimulated by various cosmetics, chemicals, pollen, certain foods and polluted air. Sensitive skin can be said to be an unstable skin, which is always in a state of high alert. Special attention should be paid to its care. Causes of skin allergy The causes of skin allergy include internal and external causes: the internal cause is allergic constitution, which plays a leading role in the pathogenesis of skin allergy. Early and complete desensitization is the key to treat skin allergy and prevent recurrence. There are many external factors. Including diet, inhalants, climate, exposure to allergens and so on. Among them, seafood, protein, spicy food, wine, inhaled pollen, dust mites, cold weather, exposure to chemicals, soap and detergents are the most common causes of skin allergies. Because of such complicated reasons, skin allergy often occurs repeatedly because of the interweaving of many pathogenic factors and inducing factors. How to care for skin allergies 1, stay away from allergens. Because allergic symptoms will always exist, it is impossible to cure them. You can only take preventive measures at any time to avoid contact with allergens that may cause allergies. 2. Be clear about the skin care products you use and their usage. Avoid using substances with strong curative effect and excessive activity that may irritate the skin. Excessive and improper use of powerful cleaning products will destroy the natural protective tissue on the skin surface; Cosmetics that are too active and will accelerate blood circulation will also irritate the skin and cause harm. Don't wash your face with soap-based emulsion such as medicated soap, because surfactants are experts in decomposing keratin and should be avoided as much as possible. It is best to use emulsion or soap-free soap to adjust the pH and adapt to the skin. Products such as scrub and exfoliating agent should keep a certain distance from others. Adopt simple cleaning, refreshing and moisturizing procedures. 3. Pay attention to the use of sunscreen products. Sensitive skin has a thin cortex, has no defense against ultraviolet rays, and is prone to aging. Therefore, it is better to wear basic skin care products as isolation before using sunscreen, but the ingredients of sunscreen products are also one of the factors that are easy to cause irritation, so it is best not to apply them directly to the skin surface. Recently, some manufacturers have introduced sunscreen products with less chemical and physical components, which are relatively less irritating to the skin. At the same time, avoid excessive exposure, because ultraviolet rays are particularly penetrating, and frequent exposure will make the skin thinner and more vulnerable to irritation. 4. Use cosmetics with caution. For people with sensitive skin, it is best not to change used cosmetics casually. If you want to use new cosmetics, do a skin test first. The method is to smear cosmetics on the delicate skin inside the wrist and leave it for one night or 2-3 days to observe its reaction. If there are abnormal reactions, such as inflammation, redness and rash, you must avoid using cosmetics. People with "sensitive" skin should wash their skin with warm water. In areas with flying pollen in spring, we should try our best to reduce going out to avoid causing pollen dermatitis. Moisturizing cream can be used in the morning and evening to keep the skin moist and prevent the skin from drying and peeling. 6. In diet, eat more fresh fruits and vegetables and have a balanced diet. It is best to include a large number of fruits and vegetables rich in vitamin C and any food containing vitamin B, and drink more clean water, which can moisturize the skin in the body in addition to various benefits. Usually do some nutritional masks, such as cucumber juice mask, loofah juice mask, egg white honey mask and so on. In order to gradually improve the skin condition and get skin fitness. 7, carry-on clothes should be rinsed clean, and the residual detergent in the clothes towel may irritate the skin. 8, sleep has a cosmetic effect, eight hours of full sleep every day, no skin care products can be replaced. 9, exercise can improve blood circulation, enhance skin resistance, and enter the best state.