Yahweh-Raphah:  

"The Lord Who Heals" (Exodus 15:22-26). From rophe ("to heal");

implies spiritual, emotional as well as physical healing. God heals body, soul and spirit.

 When God first revealed Himself to the people of Israel after their deliverance from Egypt, He called Himself "the Lord Who Heals."
 He didn't just describe Himself as a healer -- He actually gave Himself that name. In Exodus we God making the following declaration "For I am the LORD who heals you."

One of God's names is "The One Who Heals" or we could just say "Healer."
 Certainly God heals physically. Yet we should not limit our thinking on this. God heals, or makes whole and sound, everything that He touches. (So, if we need healing, our plan should be to get closer to God.)
 The idea of making whole and sound is what we should focus on. God, by His nature, makes things whole. He IS a healer. A healer of bodies, of minds, of relationships, of nations  whatever needs making whole and sound. The important point is to realize that we need not convince God to heal, because that is His very nature.