“The Messenger of Allah ﷺ said: ‘What a good slave is the cupper. He takes away the blood, reduces pressure on the spine, and improves the eyesight.’” (Using translation from Ibn Mājah 3478)
قَالَ رَسُولُ اللَّهِ ﷺ «نِعْمَ الدَّوَاءُ الْحِجَامَةُ تُذْهِبُ الدَّمَ وَتَجْلُو الْبَصَرَ وَتُخِفُّ الصُّلْبَ»