“…In addition, it is emphasized that different educational practices for self-care behaviors (telephone follow-ups, a theory-and evidence-based interactive health communication application, internet-based stepped care program, and others) are beneficial in promoting self-care activities in cancer patients (Beaver et al, 2017;Hauffman et al, 2017Hauffman et al, , 2020. Various studies indicate that the OSCDT can increase the effectiveness of nursing care and improve the outcomes of care (Fouad & Belal, 2017;Mohamed & Fashafsheh, 2019;Rehwaldt et al, 2009;Williams & Schreier, 2005). Providing education based on Orem's theory enables patients to estimate how and when to take measures to prevent or relieve symptoms during chemotherapy and to increase the quality and sufficiency of their self-care (Dodd, 1997;Foltz et al, 1996;McDaniel & Rhodes, 1998;Rehwaldt et al, 2009).…”