Cupping / Hijama is a much forgotten but important Sunnah. The Prophet of Allah (Sallallahu Alaihe Wasallam) said regarding Cupping:
"Whoever performs cupping (hijamah) on the 17th, 19th or 21st day (of the Islamic, lunar month) then it is a cure for every disease." [Saheeh Sunan abi Dawud (3861)]
"I did not pass by any group on the night of Al Isra (night ascension), except that they said to me, 'Oh Muhammad, tell your Ummah to do Hijamah.'" [Ibn Majah (3477)]
Revive this Sunnah in your own life and reap the benefits - both physically and spiritually, Insha'Allah!