In summer, due to higher temperatures, the skin’s moisture evaporates faster, which tends to cause oily skin. It can also be due to the skin barrier is damaged, the ability to lock water decreased, resulting in increased oil. The reason why the skin gets oily in summer is because the temperature is higher in summer, it is easy to sweat, the skin water evaporates quickly, the skin will secrete oil to protect the skin, resulting in an imbalance of oil and water in the skin. It is recommended to drink more water, eat a regular and light diet, have a normal routine, avoid spicy and fried foods, and eat more vitamin-rich fruits and vegetables, such as broccoli and kiwi. At the same time, do not stay up late, pay attention to rest. If the sebaceous layer and the stratum corneum on the surface of the skin are subjected to external stimulation, it may cause skin function damage, such as sun exposure, external stimulating drugs. The water-locking function of the skin decreases, and in order to protect the skin function, the compensatory secretion of sebaceous glands will increase, resulting in abnormal oil secretion. You can choose to use moisturizing glycerin, when the skin’s moisturizing function is restored, the greasy state will gradually subside. When the skin secretes oil abnormally in summer, it is recommended to consult a doctor in time, follow the doctor’s instructions for further examination, clarify the cause with the help of the doctor, and actively cooperate with the doctor to deal with it.