A pus-filled boil at the opening of the ear is a manifestation of an external auditory canal boil, which can be treated by incision and drainage as well as local cleansing and anti-infection.
An external auditory canal boil is a limited suppurative inflammation of the skin follicles or sebaceous glands in the cartilaginous portion of the external auditory canal. A localized boil can be seen, and when the abscess matures and bursts, pus, which may be mixed with blood, may flow out of the external auditory canal.
When the boil is mature and unruptured, the head of the pus can be punctured with a sterilized instrument or incised and drained, and the external auditory canal can be cleaned of pus and secretions with a hydrogen peroxide solution; if the abscess ruptures on its own, the skin is cleaned with alcohol and antibiotic tampons are placed in the area. Oral antibiotics, such as erythromycin, may be given for more severe symptoms.
When external auditory canal boils appear, it is recommended to consult a doctor in time and standardize the treatment according to the different stages of the disease under the guidance of the doctor.