Pain from breast surgery can be reduced by injections of Botox. That`s according to a new study by University of Arkansas for Medical Sciences researchers. The botulinum toxin is used mainly for to combat wrinkles. But Botox has been found in the study to alleviate pain that follows breast reconstruction surgery after a mastectomy. Botox acts on muscles and is not a pain reliever. In its cosmetic use, Botox relaxes facial muscles to diminish wrinkles. When used in breast reconstruction, the injection relaxes chest muscles to diminish pain. Doctor Julio Hochberg at U-A-M-S is one of the study`s authors. He says Botox can help keep muscles from going into spasm as the body adapts to a breast implant after a mastectomy.