Bhaiṣajyarāja (Skt: भैषज्यराज; Traditional Chinese: 藥王; Simplified Chinese: 药王; pinyin: yào wáng; Japanese: 薬王 Yakuō), or Medicine King, is one of the provisional bodhisattvas mentioned within the Lotus Sutra who vows to expound the Lotus Sutra after the passing of Shakyamuni Buddha. He is said to have been reborn over a period of numerous lifetimes healing and curing diseases, and is a representation of the healing power of the Buddha.
References
Bhaishajyaraja Wikipedia(Text) CC BY-SA