The main cause of skin allergy in spring and summer is pollen, followed by the stimulation of sunlight. In winter, the intensity of sunlight is weak, and people seldom go outdoors. In spring and summer, when the intensity of sunlight is high and the time is long, the skin cannot adapt at once and inflammation easily occurs. In addition, the cosmetics applied to the face after the sun and temperature changes, but also easy to make the skin allergic. Once the skin allergy, not only itching, and affect the beauty, so women who love beauty usually not only pay attention to the choice of skin care products but also pay attention to diet, but also to master a set of effective self-help methods. 1, try not to use cosmetics, can use skin with olive oil, silicone cream and other moisturizers to ensure that the skin moist. 2, if in case you want to use cosmetics, when using new skin care products, first apply a little on the inside of the forearm or behind the ear, observe 48 hours later, if local redness, blisters, itching, etc., it means that the skin is allergic to the skin care products, absolutely not to use. On the contrary, no local reaction can be used, and it is usually best not to wear more makeup and easily replace cosmetics. 3, with non-alcoholic toner or spa water. The role of toner is to give the face a fresh and smooth feeling. Most of the general toner contains alcohol, in addition to making sensitive skin prone to infrared, when the alcohol evaporates, it will also make the skin appear tight phenomenon, so you should choose a mild nature and does not contain alcohol, fragrance toner, from stimulation. 4, if the facial skin blisters, you can put 3% boric acid solution in the refrigerator freezer, with cold boric acid solution poured on top of 6 layers of sterile gauze, but do not let the gauze drip water. In this way, cold compresses 2-3 times / day, can quickly sedate the skin. 5, avoid food. Eat as much attention. Barbecue must not eat, and then delicious do not eat, the sensitive skin will cause great damage, so that the skin is seriously dehydrated. Fried to eat less, of course, it is best not to eat, whether it is the main food or snacks. Spicy ones should also be touched sparingly as well. At the same time do not drink alcohol. 6, avoid hot spray. Whether in the beauty salon, or at home, do not use hot steam for hot spray, it is best to cold spray. 7, strict sun protection. Sun protection is recommended to use UV protection sun umbrella. General sunscreen will contain chemicals such as PABA (para-aminobenzoic acid), but most of these are leading to sensitivity, sensitive skin people can use products containing Titaniumdioxide (titanium dioxide) or zincoxide (zinc oxide), it is best to try not to use. 8, more supplemental vitamin C. Lack of vitamin C, easy to make the skin rough and dry, which leads to dermatitis, peeling and other sensitive symptoms. In the rich vitamin C fruits and vegetables, pears and kiwi fruit is the first choice, eat more can strengthen the skin tissue, help combat external sensitivity.