Effect of Inhaled Aromatherapy on Chemo-Induced Nausea Vomiting (NCVI): CINVAROM (Chemotherapy Induced Nausea Vomiting and AROMatherapy)

Inclusion Criteria: Patients will be eligible if: * Aged over 18, * Presenting a solid tumor in the 1st line of chemotherapy administered by intravenous route; * Treated with adjuvant or neoadjuvant chemotherapy; * Affiliated with a social security scheme; * Able to understand the meaning of the questions asked; * Having given their written consent to participate in the study; * Whether or not treated with surgery and radiotherapy before entering the study Exclusion Criteria: Patients who: * Do not give their consent to participate; * Do not master the French language; * Are deprived of their liberty, under guardianship or curatorship; * Suffer from cognitive deficits or associated psychiatric disorders that could compromise their ability to participate in the study (eg: schizophrenia); * Are undergoing radiotherapy; * Must receive a combination of radio-chemotherapy; * Whose chemotherapy protocol is composed of several chemotherapy administrations per week during a course of treatment; * have been previously treated with chemotherapy; * Have an occlusive syndrome; * Have primary cancer of the central nervous system or brain metastases; * Have cancer of the Upper Aero Digestive Tract; * Simultaneously participate in a therapeutic clinical trial; * Have an intolerance to a component of essential oils; * Pregnant or breastfeeding.