This and the preceding article (Nursing Mirror, Sept. 1, 1978) form a slightly shortened version of Chap. 5 from Vol. 2 of the book 'Oncology for Nurses and Health Care Professionals', ed. R. Tiffany, (Allen and Unwin, Oct. 1978). Teletherapy was dealt with in part 1. Part 2 is concerned with radiotherapy using radioisotope implants and applicators and unsealed sources, and with surgery and chemotherapy, including side effects of anti-tumour drugs. The physical and psychological effects on the patient of these forms of treatment are discussed, and nursing care and radiological safety precautions for both patients and nursing staff are described.