Auricular itching is a clinical manifestation of contact dermatitis, atopic dermatitis, fungal skin diseases and other diseases. 1. Contact dermatitis: when the auricle comes into contact with certain chemicals, fur and other allergens, an acute or chronic reaction will occur at the contact site, resulting in itchy auricle. 2. Atopic dermatitis: it is a chronic inflammatory skin disease related to genetic allergy, which is characterized by itching, polymorphic lesions and exudation, and also causes auricular itching. 3. Fungal skin disease: fungal infection caused by auricular dermatophytosis, fungal dermatitis, etc. can also cause auricular itching. There may be other reasons for the itchy outer ear, so it is recommended to go to the hospital for examination to clarify the cause.