Analysis of the Effect of Aromatherapy on Preventing Nausea and Vomiting in Cancer Patients During Chemotherapy: a Randomized Controlled Study

INTERVENTION: Intervention group:Based on the standard anti‐nausea protocol, 5 minutes before each chemotherapy session, the researchers applied three drops of essential oil onto a 5cm×5cm sterile gauze, and fixed the gauze to the patient's collar with a safety pin, ensuring that the gauze was approximately 20 centimeters away from the patient's nose. This way, the patient could continuously inhale the scent of the essential oil throughout the chemotherapy process.;Control group:The control group was given the standard antiemetic regimen, along with routine oncology care, which included health education on medication, diet, and exercise.; CONDITION: Cancer PRIMARY OUTCOME: ( Chemotherapy‐Induced Nausea and Vomiting,CINV; SECONDARY OUTCOME: Functional Living Index‐Emesis; INCLUSION CRITERIA: 1. Age >= 18 years; 2. Diagnosed with malignant tumor, with no restrictions on tumor type, and receiving chemotherapy based on platinum compounds; 3. Expected survival period greater than 3 months; 4. ECOG score 0‐2; 5. No other diseases causing nausea and vomiting, such as increased intracranial pressure, brain metastasis, intestinal obstruction or liver and kidney diseases, etc.; 6. No abnormal sense of smell or respiratory system diseases such as asthma or rhinitis in the patient; 7. Signed a written informed consent form and voluntarily agreed to participate in this study.