There are 3 reasons why boils are more common in summer. One is that in summer, the body’s metabolism increases, metabolites increase, and sebaceous glands secrete a lot, which can easily block pores. Staphylococcus aureus will take advantage of the situation and grow and multiply in the hair follicles and sebaceous glands to cause purulent infection. Sweat happens to be rich in protein and fatty acids, which is a good medium for bacterial growth. Therefore, if you do not wash and change your clothes in time after sweating, or if you wear impermeable chemical fiber clothes, you may stimulate your skin and cause infection. Second, people in the summer sleep less, appetite decline, irritability, will lead to a decline in resistance, which also encourages the reproduction of bacteria, which can easily lead to skin infections. Third, the summer intake of large amounts of sugary drinks or fruits. This can raise blood sugar and affect the ability of white blood cells to kill bacteria, which also easily invites infections, especially in diabetics. When the boil first starts, it should be warmed up in time and the surrounding skin can be disinfected with 75% alcohol commonly to facilitate the confinement of the boil; when the boil is formed, 10% ichthyolite ointment or traditional Chinese medicine hibiscus cream can be applied externally; if the boil is mature, with soft surface and fluctuating feeling, it can be cut and drained, and after draining the pus, compound neomycin ointment can be applied until it is cured; however, boils in the external ear canal, nose and upper lip should not be cut, let alone squeeze to prevent the infection from spreading. If a boil occurs with significant pain and is accompanied by fever and local lymph node swelling, it should be treated with oral or injectable antibacterial agents. If necessary, you can take the Chinese herbal medicine Wu Wei Disinfectant Drink orally to clear heat and detoxify. For some children with (recurrent) boils, they should also be checked for diabetes, and those who are immunocompromised can be given BCG polysaccharide. Nucleic acid 2ml can be injected into the muscle once every other day for 9 times in a row.