Miaderm is safe and effective anywhere on the surface of the skin. To get the maximum benefit of Miaderm during radiotherapy for breast, head & neck or for treatment anywhere on the body except mucous membranes or the genital region. It is beneficial to start a week prior to treatment or at least the initiation of radiation therapy and continue using three times daily through two weeks after radiation treatments have completed. Our product also works at reversing the effects of treatment for those patients who have only just learned of our product. Generally a 4oz. tube of Miaderm Radiation Relief lotion will last approximate 2 to 3 weeks depending on the treatment area. We recommend 3 tubes for a course of 6 to 7 week treatment period for a standard breast therapy treatment for a patient up to a "C" cup (patient could require more depending on breast size).