Efficacy of Galvanic Vestibular Stimulation in the Treatment of Vestibular Dysfunction

INTERVENTION: Intervention group:galvanic vestibular stimulation;Control group:None; CONDITION: A spectrum of vestibular dysfunctions, including peripheral vestibular dysfunction, central vestibular lesions caused by neurodegenerative diseases or post‐stroke conditions, and migraine‐related vestibular symptoms PRIMARY OUTCOME: Vestibular symptoms (vertigo/dizziness, balance impairment, etc.); SECONDARY OUTCOME: Headache and autonomic symptoms (anxiety, insomnia), etc.; INCLUSION CRITERIA: 1.Chinese aged 18–70 years; 2.Capable of providing signed informed consent; 3.Meeting the diagnostic criteria for peripheral vestibular dysfunction, central vestibular lesions caused by neurodegenerative diseases or post‐stroke conditions, or migraine‐related vestibular symptoms; 4.Exclusion of acute organic central nervous system diseases; 5.No changes (in type or dosage) to medications for vestibular dysfunction during the study period, with allowance for the use of anti‐vertigo or analgesic medications during acute episodes;