Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: The Messenger of Allah (peace and blessings be upon him) said: "Cupping on the head is a cure for seven ailments, if the one who has it done intends it: for madness, leprosy, vitiligo, drowsiness, toothache, headache, and a darkness that one feels in the eyes."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10892