Boils, medically known as folliculitis, are caused by bacterial infections, with Staphylococcus aureus being a common pathogen. Poor personal hygiene and endocrine disorders are the most common causes of boils on the head. The scalp area is rich in hair follicles and secretes a lot of oil, so when the body’s resistance drops, it is easy to secondary bacterial infection. The main manifestation of folliculitis is the inflammatory changes around the hair follicles around the redness and swelling, inflammation can spread to the surrounding area, into hard nodules, after a few days in the middle of the pus plugs can appear, the pus plugs will burst after the pus will flow pus and blood, and then the inflammation subsides and gradually healing. Folliculitis, it is recommended to rest, avoid staying up all night, avoid picking and squeezing, follow the doctor’s instructions can be coated with povidone-iodine or anti-inflammatory ointment, such as erythromycin ointment, so as not to aggravate the proliferation of inflammation, and recurring recommendations for timely medical treatment.