Atlanta ? A physician accused of not telling authorities about a man who sells a flesh-eating paste to cancer patients has surrendered her medical license.

Dr. Lois March, an ear, nose and throat specialist, surrendered her license last week. She must stop practicing by Dec. 1, an official with Georgia’s board of medical examiners said Monday.

The medical board previously filed a complaint against her, saying she aided the paste seller by treating patients who used it. Dan Raber, the pastor-turned-healer who sells it, claims it cures cancers. Made with bloodroot, an extract from flower root, the substance is billed on his Web site as “TumorX Paste.”

The board said March provided pain medication to patients who used it, seven of whom had breast cancer. She should have known that bloodroot “mutilated their breasts and caused excruciating pain,” the board said.

Raber’s farm was raided by the U.S. Food and Drug Administration earlier this year. Neither March nor Raber has been charged.

March is eligible to apply for license reinstatement after two years provided she has no further contact with Raber, his family or practices involving use of bloodroot, officials said.