In Christian Science, error is a term used to describe anything and everything that is the opposite of God.  

God is Truth the omnipresence of spiritual goodness.  Error is suffering, pain, sin, disease, and death.

Experience proves that the best way to get rid of error, is to focus on Truth.  “Know the truth, and the truth shall set you free,” (John 8:32) Jesus Christ taught.  

When praying for relief, be wise to not build up the error, but to let Truth tear it down; to totally dissolve it until you have no sense of it.

Mary Baker Eddy is quoted as saying in her early years of discovering Christian Science, “I want to tell you the blessed fact of discovery in this hour: it is to make nothing of error…When we start from the basis of Being error must fade as we grow” (Mary Baker Eddy: The years of trial, p. 165).

Error is not something to think about and war with as if it’s a reality.  It’s a false belief to dismiss; with Truth!