A blister on the earlobe may be related to diseases such as external ear eczema, contact dermatitis and herpes zoster.
1. Eczema of the outer ear: redness, swelling, oozing and blisters may appear in the ear canal, auricle and earlobe when there is autonomic dysfunction, endocrine disorders, and after contact with or ingestion of sensitizing substances.
2. Contact dermatitis: it is an inflammatory reaction that occurs in or outside the contact area after the skin or mucous membrane is exposed to exogenous sensitizing substances, and the lesions can be manifested as erythema, papules, blisters, and so on.
3. Herpes zoster: varicella zoster virus infection, can occur in the ear, ear canal, auricle and earlobe and other places occur blisters performance, often accompanied by severe pain.
When the earlobe has a blister, you can actively seek medical attention, systematic examination, clear diagnosis.