Violent deafness during menstruation is located in the Shaoyang, the pathological basis of which is weak blood and weak qi, and the evil is depleted in the liver and gallbladder, so Xiao Chaihu Tang Plus Flavor is the right remedy for this case. Chaihu enters the liver and gallbladder meridian, which can drain the stagnation of liver and gallbladder qi, and Scutellaria baicalensis can clear the heat of liver and gallbladder. The ascending and dispersing of Chaihu and the bitter descending of Scutellaria baicalensis can not only reconcile the Shaoyang, but also regulate the qi, and the qi of the liver and gallbladder can lead to the loss of gastric harmony and descending of the stomach. In this paper, three cases, all appeared in one side of tinnitus and deafness after the onset of menstrual period, and electro-audiometry showed neurogenic deafness. The patient in case one had low body quality during menstruation, which caused the unfavorable of Shaoyang meridian gas and was depressed by the evils, and stagnation of gas and blood stasis resulted in loss of hearing in the ear orifices, and tinnitus and ear boredom, and the treatment was based on reconciling Shaoyang meridian and was chosen to be added with Xiao-chai-hu-tang. Because of the lack of ginger in the Chinese medicine of the ward, a little dry ginger was used instead, and Pueraria Mirifica, Rhizoma Ligustici Chuanxiong, and Bone-setting were added to strengthen the power of promoting yang, activating blood, and tonifying the kidney, which are the most important medicines for the treatment of deafness, and can be taken by deaf patients. The patient in case 2 had severe insomnia, so the Chinese medicine treatment was based on the above formula with the addition of jujube kernel and acacia bark to calm the mind. In case 3, the patient had been sick for 5 days when he came to our hospital for treatment, and he was afraid of retaining stasis, so he added motherwort to dissolve stasis and generate new blood in the Chinese medicine treatment. Xiao Chaihu Tang for the treatment of sudden deafness during menstruation suggests that for sudden deafness occurring during menstruation, it is not a purely real or false evidence, but a mixture of false and real, the liver and gallbladder fire disturbing the ear orifices through the Shaoyang meridian, and the blood deficiency during menstruation and the lack of positive qi to fight against the evil, so Xiao Chaihu Tang is used to reconcile and support the positive and eliminate the evil. Modern pharmacological research shows that Xiao Chaihu Tang has the effect of enhancing immune function and anti-virus. The change of hormone level and iron deficiency of menstruating patients may be the factors that induce sudden deafness, but the specific pathogenesis is still to be explored.