1) Women receiving breast cancer radiation treatment will undergo a mask preparation and planning CT scan. They will then receive weekly radiation treatments over approximately 15-25 sessions. 2) Patients need to cooperate with doctors as radiation treatment involves more than just the radiation. They should follow nutrition and diet charts provided by dieticians. 3) Common side effects include skin blackening and soreness that are usually temporary. Patients should avoid rubbing the skin and use prescribed creams. Regular checkups with doctors are also important.