Also known as mites, hair follicles that live in the human body can cause chronic inflammation, mainly manifesting as erythema, papules, pustules, crusting, and flaking on exposed areas of the skin, such as the face and back. There are seven main types, including rosacea, acne, pustular, hyperpigmented, pityriasis, lichen planus, and lupus cornus. For infections caused by follicular worms, the first thing you should do is pay attention to the cleanliness of your face and avoid applying common towels and washbasins. You should also pay attention to personal hygiene and change your underwear in time. In addition, one should avoid eating spicy and other stimulating foods and avoid drinking alcohol. At present, there is no very satisfactory drug for killing hair follicle, adult worms, larvae and mites, you can consider applying metronidazole, generally 15 days as a course of treatment, and you can use a second course of treatment after two weeks of stopping the drug. Patients with secondary infections can also consider minocycline for 15 days as a course of treatment, and erythromycin can also be applied. Topical medication can also be used, based on keeping the face clean, sulfur or metronidazole can be given for facial cleansing, etc.