Inclusion Criteria:  Being literate Being over the age of 18 The patient whose treatment and follow-up will continue for 7 weeks Patient diagnosed with head and neck cancer, scheduled to receive radiotherapy Patients who verbally and in writing approved to participate in the study after the explanation about the research  Exclusion Criteria:  Metastasis development in the patient Refusing to participate in the research after the explanation about the research. The patient himself / herself wants to leave the study. Treatment interruption for more than 2 days due to deterioration of the general condition of the patient Taking the patient into intensive care