The external auricle is always itchy, clinically it may be considered as eczema of the auricle, which is related to allergic diseases. This kind of disease is related to the allergic disease on the surface of the auricle caused by the patient eating foods that are easily allergic, or the ears are exposed to things that are easily allergic, commonly animal fur, pollen and other triggers. Generally, in this case, in the acute stage, localized redness and burning sensation of the auricle can be seen, and there can be allergic exudation on the surface, such as yellow water and so on. In the case of chronic subacute eczema, there may not be much clinical exudation, but itching is also very obvious. Long-term recurrent auricular eczema can lead to changes such as thickening and flaking of the auricular skin. In general, for auricular eczema, it is clinically recommended that patients have their blood tested for allergens to see what they are allergic to, and that they can apply anti-allergy creams to their ears and take oral antihistamines for symptomatic treatment.