The possible reasons for patients experiencing a burst of pain in the left ear nerve are as follows: 1. It may be a simple manifestation of ear neuralgia; 2. It is affected by mental and emotional stress factors; 3. It may be due to factors such as lack of sleep, irregular work and rest, repeated fatigue and staying up late in the night recently, resulting in a decrease in body immunity, which may easily trigger the occurrence of paroxysmal pain symptoms; 4. It may be a condition in which the peripheral nerve of the ear After the paroxysmal neuralgia in the ear occurs, viral herpes will often appear further, which will lead to further aggravation of the ear pain symptoms and may also cause headache, fever, facial palsy and other related symptoms, which require active antiviral treatment measures.