Itching outside the ear should be alert to insect bite dermatitis, contact dermatitis and external ear eczema and other diseases.
1. Insect bite dermatitis: when the outside of the ear by mites, mosquitoes, ticks and other insect bites or toxin-containing sap stimulation, can appear in the ear of the affected area of redness, swelling and itching of the early manifestations.
2. Contact dermatitis: when the allergic patients outside the ear after contact with sensitizing substances, often lead to allergic reactions on the surface of the ear in contact with the site, the early symptoms of itching.
3. Eczema of the outer ear: allergic inflammation of the auricle, external auditory canal and surrounding skin. It may be related to allergic reactions, mental factors, neurological dysfunction, etc. It can be triggered by stimulation of drugs or other allergic substances and long-term pus stimulation. It manifests as itchy, polymorphic rash, which is common in children.
When the itch outside the ear persists, or accompanied by other symptoms, you need to actively seek medical examination, clear diagnosis and standardized treatment.