Swelling of the ear eye refers to the appearance of swelling around the external auditory canal, which may be related to external auditory canal boils, diffuse otitis externa, and external auditory canal eczema. 1. External auditory canal boil: It is caused by the infection of hair follicles or sebaceous glands in the cartilaginous area of the external auditory canal by staphylococcus and other bacteria. The skin of the cartilaginous part of the external auditory canal can be seen to be confined red and swollen, with obvious tenderness, and the pain is obviously aggravated when the ear screen is pressed or the auricle is pulled. 2. Diffuse otitis externa: pathogenic infection around the external auditory canal can also cause corresponding symptoms, and the local inflammatory reaction after infection, some will be accompanied by mucosal ulceration. 3. Eczema of the external auditory canal: and local mucous membrane is repeatedly stimulated, caused by the allergic inflammation, most of them will be accompanied by localized obvious itching. Swelling around the external auditory canal has not been relieved, you need to consult a doctor in a timely manner, after diagnosis under the guidance of the clinician for standardized treatment.