If the numbness of the ear and face is unilateral, then it may be caused by trigeminal neuritis, cerebral infarction and other diseases. If the numbness of the ear and face is bilateral, then it may be caused by the contact of the ear and facial skin with certain allergens.
1. Trigeminal neuritis: Trigeminal nerve is the nerve that innervates facial sensation, and inflammation stimulates the trigeminal nerve, which will lead to abnormal nerve function and make the patient have the symptom of unilateral numbness of ear and face.
2. Cerebral infarction: infarction in the region of the cerebral cortex innervating the ear and facial sensation, or infarction of the nerve conduction bundle innervating the ear and facial sensation, the patient will also have the symptoms of unilateral numbness of the ear and face.
3. Allergic dermatitis: As the ears and face are exposed to the air, they are easy to come into contact with all kinds of substances in the outside world. If they come into contact with allergic substances, allergic dermatitis may occur in both ears and face, and the symptoms of bilateral numbness of the ears and face may appear.
In addition to the above diseases, other factors can also lead to the symptoms of numbness of the ears and face, and it is recommended to consult a doctor in time to find out the cause and ask the doctor to deal with it.