Vasomotor rhinitis and sphenopalatine ganglion block.

The effectiveness of the sphenopalatine ganglion (SPG) block for the relief of symptoms in chronic vasomotor rhinitis was assessed in 30 patients of both genders. The number of blocks required for complete relief was three (range from two to four) at weekly intervals in 66.7% of volunteers. There was no recurrence of symptoms during a follow-up period of 12-20 months in 29 patients, and one patient was symptom free for 8 months. The technique is simple and can be performed as an outpatient procedure without side effects.