Massage balls, when applied to specific trigger points for cluster headaches, provide localized mechanical stimulation that can activate peripheral sensory nerve fibers, potentially modulating pain perception through gate control theory and triggering endogenous analgesic mechanisms. The pressure and rolling motion of the massage ball may help reduce muscle tension, improve blood circulation, and stimulate the release of endorphins, which can provide temporary relief from cluster headache symptoms by interrupting pain signaling pathways.