Study aim: Determination of the inhalation effect of lavender essential oil on the level of sedation in children hospitalized in the intensive care unit (ICU) Design: "A phase 1, double-blind, randomized, parallel-group, controlled clinical trial on 70 patients. The SPSS software block function was used for randomization. Settings and conduct: In the placebo group, in addition to routine care, 5 drops of distilled water are inhaled for 30 minutes every eight hours. Similarly, the intervention group inhales 5 drops of lavender extract for 30 minutes every eight hours. Then, as per the routine of the intensive care unit, agitation scores will be assessed for all studied patients in each shift (every six hours) by the respected ICU nurse using the Richmond Agitation Sedation Scale (RASS). Subsequently, the amount of sedation medications used, as well as the mean Richmond sedation score over the 24 hours following the intervention, will be measured in both groups according to the guideline Shahid Bahonar hospital of kerman Participants/Inclusion and exclusion criteria: Inclusion criteria: Age 12 to 18 years GCS greater than or equal to 8 extubated Exclusion Criteria: Intubation Patient death changes in hemodynamic Intervention groups: Control group: In this group, in addition to routine ward care, a placebo (distilled water) is used. Five drops of distilled water are applied to gauze, which is then attached to the patient’s collar. The patient inhales from it for 30 minutes. Intervention group : In this group, in addition to routine ward care, lavender essential oil from Royaye Salamat Company is also used. Five drops of lavender extract from Royaye Salamat Company at a concentration of 2% are applied to gauze, which is then attached to the patient's collar at a distance of 10 centimeters. The patient inhales it for 30 minutes." Main outcome variables: RASS score