Patients with rectal cancer are relatively weak during chemotherapy and need two weeks' rest to recuperate. Chemotherapy, radiotherapy and some auxiliary drugs, Sevekang, contain selenium-enriched malt, vitamin E and beta-carotene. It can accelerate the recovery of the body after chemotherapy, which is supported by literature. Selenium malt can inhibit the proliferation of cancer cells, affect telomerase activity, induce apoptosis of cancer cells and prevent recurrence and metastasis. The combination of radiotherapy and chemotherapy has synergistic and attenuated effects. Reduce the toxic and side effects of radiotherapy and chemotherapy and improve the therapeutic effect.

Develop good living habits and eating habits. Regular review suggests that some drugs can be prescribed before and after radiotherapy to reduce the radiation damage caused by radiotherapy, such as "Amdoline", which can enhance immunity, promote the repair of normal cells and reduce the occurrence of adverse reactions.