Effect of Guided Imagery on Chemotherapy-related Nausea and Vomiting

The children in the experimental group will listen to the first part of the 'Guided Imagery CD' prepared by the Turkish Psychological Association for relaxation 30 minutes before the chemotherapy infusion starts. The suggestions given in the first part of the CD will help the patients relax and focus their attention on their breathing. Patients will be positioned in a supine or semi-fowler position and will listen to the CD with headphones from a laptop. Once the chemotherapy infusion starts, relaxing light background music with the sound of a river or sea will be played based on the patients' preference, and imagery will be applied to the patients. Patients will be encouraged to think of various images, such as imagining that the treatment is over, visualizing themselves as much healthier and recovering quickly, returning to their old life, and doing whatever they want to do first after recovery. If there is an object, person, event, situation, or food that will make them feel good,