Article in English: Boils are bump-like manifestations on the skin. When it is advanced, a boil can disappear on its own or increase in size. When they increase in size they become abscesses and are of significant concern, both medically and cosmetically. If it increases in size, it will eventually form a head, which means that underneath the top surface, the skin becomes filled with pus. It can break open, draining and oozing pus, which is a mixture of blood cells, bacteria and fluids. The symptoms include:  A firm, typically red bump on the skin Tenderness at the sight of the bump, which is sometimes extreme Swelling When you notice the symptoms of a boil, you may need to figure out which boil you have. A boil is a common form of a medical condition called an abscess which is a collection of pus underneath the dermis (the layer of skin under the epidermis). There are a number of different types of boils that may appear. These include:  Furuncles, which occur in hair follicles. They are associated with a fever and chills and can become chronic. Carbuncles, which are generally larger than furuncles and can also become chronic. They can also form hardened lumps under the skin. Cystic acne, which is both a type of acne and a type of boil associated with more severe forms of acne. Hidradenitis suppurativa, which is an inflammatory condition of the sweat glands. It occurs when there are multiple boils cropping up under the arms and along the groin area. It is also resistant to antibiotics and may require surgery to remove the affected sweat glands. Pilonidal cysts, which result from inflamed hair follicles at the top of the buttock crease. Pilonidal cysts are uncommon, can occur after long periods of sitting, and occurs more in men than women. There are multiple things that can cause boils. They are the result of an infection from the bacteria Staphylococcus aureus most commonly, though other fungi and bacteria can be found in the boils. Boils can be found anywhere on the body; however, they are most commonly found on the face,...

Summary in Chinese:
留意疖子的症状。 辨别疖子类型。 了解疖子形成的原因和位置。 了解风险因素。 用药治疗。 就医。