Hi …I’m sorry to hear about this and she is blessed to have such a loving supportive mom. Her treatment is going to depend on the stage of her cancer. For example, I have stage 4 cervical cancer which is mostly treated by chemotherapy. Currently I am receiving a chemo drug called TIVDAK. It is effective but designed for advanced cases like mine. I have also done supportive therapies like IV vitamin C. A clean diet is good especially because it helps ease side effects of treatment. There are nutritional supplements that have been researched; go to pubmed and plug in search terms: cervical cancer dietary supplements. But when you get down to it, cervical cancer is going to be treated with surgery, radiation, or chemotherapy or some combination of these - depending on the stage of her cancer. Find out that, get a good oncologist, and follow his/her treatment plan. Stay positive and on that course of action.