A common cause of itchy skin in summer is sweating and rinsing with cool water to block sweat pores and grow prickly heat. Prickly heat is a common acute inflammation of the skin in summer, caused by blocked sweat holes. Rinsing with cool water while sweating can lead to occlusion of sweat holes, poor perspiration, and prickly heat. Therefore, after sweating, be sure to dry with a towel first, then rinse with warm water. You should also be careful not to enter the air-conditioned room directly when you are sweating profusely, as this can also lead to sweat hole occlusion. If you already have prickly heat, you should pay special attention to replacing sweaty clothes in time, bathing with warm water often, keeping your skin dry, and using some prickly heat powder to relieve itching and anti-inflammation. It is best to avoid tobacco, alcohol, spicy and greasy food, and the indoor environment should not be humid and the temperature should be suitable to reduce sweating and facilitate the evaporation of sweat. If small superficial pustules of needle point size appear at the top of the prickly heat, it is likely to develop into pustular prickly heat and should be seen by a doctor. Summer dermatitis is mostly due to sweating without clearing, dermatitis is a skin disease with a high incidence in summer, and the culprit is sweat. Summer dermatitis is the skin disease most clearly related to summer weather conditions and manifests itself as a red, corn-like papule. Itching and scratching can result in scratching and crusting, oozing, skin hypertrophy and hyperpigmentation, and if left untreated, oozing, which occurs on the trunk and the inner extremities of adults and improves significantly when the temperature drops. The concentration of metabolites in sweat has a strong relationship with the severity of summer dermatitis symptoms. The composition of sweat is similar to urine, containing a large number of metabolic wastes of human tissue, such as urea, uric acid, lactic acid sodium chloride, etc. These metabolic wastes are acidic substances, which are highly irritating to the skin and can cause chemical inflammatory reactions in the skin, causing capillary dilation and inflammatory cell aggregation in the skin. The concentration of metabolic waste in the sweat is large, the skin produces a strong chemical inflammatory response, and vice versa is weak. When the body sweats moderately, the level of metabolic waste in sweat is the highest, which is most likely to cause summer dermatitis. The actual fact is that you can find a lot of people who are not able to get rid of their sweat in time, and the chemical components in the sweat stimulate the skin, which can cause summer dermatitis. The actual fact is that you can find a lot of people who are not able to get a good deal on this kind of things. Some girls like to wear non-cotton tight clothing in the summer, poor breathability, easy to give summer dermatitis can take advantage of. You should also drink more water to dilute the harmful ingredients in the sweat. You can use topical medication to stop the itching under the guidance of your doctor. Be sure not to use hot water to wash the affected area to stop the itch. The hot water will make the blood vessels under the skin more dilated, redness and swelling will increase, and the exudate will increase, which is not good for recovery. Sleeping on a cool mat, spraying flower lotion, also beware of getting into skin disease. In summer, people are used to sleeping on the cooler, some people in the body contact with the cooler parts of the prickly itch, and small red bumps, which is the cooler led to the symptoms of mite dermatitis. The seams of the cooler are prone to parasitic mites and other mites, which bite on the human skin, resulting in small red bumps that are red and swollen, resulting in itching and pain. Therefore, in addition to frequently scrubbing with warm water, the mat should also be placed in the sun from time to time to dry. For those who are sweaty, it is best to put a layer of sweat-absorbing cotton cloth on the cooler before going to bed. In addition to mite bites, some people also have allergic reactions to grass and reed mats, the skin will appear bean grain large light red bumps, itchy, which is a contact dermatosis. People with allergic reactions should sleep on bamboo or rattan mats. Spraying lotion and applying sunscreen may also lead to contact dermatitis. Many people use flower water in summer to prevent heat rash and avoid mosquitoes, some people are allergic to the ingredients of flower water, after using the skin reddening pimples and other reactions. Contact dermatitis is a delayed allergic reaction, the onset of a certain latency period, the first contact often a few days before symptoms appear. Therefore, for a new flower lotion, the first use of the spray area is not too large, a few days later no skin abnormalities, and then a large area of use. The same goes for sunscreen, which is best applied to the skin above the wrist for a few days without reaction before applying it to the face. Summer air is humid and is a good season for fungal diseases. Every two days, the size of the family towels can be disinfected by boiling water, not convenient boiling water can be taken to the sun, the sun’s ultraviolet light is a natural fungicide.