The Master of Healing (Chinese Yao Shih), Azure Radiance Tahthagatha, also known as the Buddha of Medicine has this special dhrani to help those suffering from diseases. One practice is to recite earnestly 108 times :-

Namo bhagavate bhaishajyaguruvaiduryaprabha- rajaya tahagataya arhate samyaksambuddhaya tadyatha Om bhaishajye bhaishajyebhaishajya-samudgate svaha

In the Buddhaland of Master of Healing , The Paradise of Yao Shih, called the Pure Crystal Realm, there

are two Great Bodhisattvas. Radiance of the Sun Bodhisattva and Radiance of the Moon Bodhisattva.