Research from the Society of Interventional Radiology found that an SPG, or sphenopalatine ganglion, block significantly decreases headache pain scores in children who suffer from migraines. More than 300 treatments were conducted on 200 patients who ranged in age from 7 to 18 at Phoenix Children’s Hospital. Using a 10-point scale to record pain, researchers found that after the SPG block was performed, pain scores were lowered by more than two points on average.