Treatment of Chronic Cluster Headache with TENS and ONS

Exclusion Criteria

• •1. Other ongoing neuromodulation therapy
• •2. Current alcohol and/or drug abuse
• •3. Severe psychiatric disorder
• •4. Other chronic primary or chronic secondary headache disorder (e.g. chronic migraine)
• •5. Major posterior neck surgery in C2-C3 level and above
• •6. Pregnancy
• •7. Treatment with oral steroids or GON injection within one month of study participation