李某,男,16岁,学生。患者于半年前不明原因出现双侧耳痛、耳鸣,伴有耳聋。呈自发性疼痛、阵发性加剧,可自行缓解。近日来发作频繁,约2～3次/日,以夜间发作多见。曾在当地医院按中耳炎治疗,效果不明显。既往体健,无其它急慢性疾患。查耳廓无畸形、外耳道无节肿,无脓性溢出?.. Lee, male, 16 years old, student. Patients six months ago unexplained bilateral earache, tinnitus, accompanied by deafness. Was spontaneous pain, increased paroxysmal, self-remission. In recent seizures frequent, about 2 to 3 times / day, more common at night attacks. Had otitis media in the local hospital treatment, the effect is not obvious. Past physical health, no other acute and chronic diseases. Check ear contour without deformity, external auditory canal section swollen, no purulent spill?