1. Sedation and hypnosis. Some research institutions have done tests. After inhaling 10% lavender essential oil, the subjects will show obvious relaxation, reduce anxiety, increase the alpha waveform of EEG and have obvious comfort in EEG. Second, relax muscles and relieve fatigue. Lavender essential oil not only acts on the central nervous system, but also relaxes smooth muscles, muscles, blood vessels and relieves stress and fatigue. Third, antibacterial effect Lavender, the potassium solution in lavender, has excellent antibacterial and antifungal effects. Fourth, reduce scars. The mechanism of lavender essential oil on scar is not clear. As far as the practical application effect is concerned, the use of lavender essential oil in the skin healing period is helpful to reduce scar tissue, and it can also play a very effective role in the scar that has been formed. The skin care function of lavender is mainly manifested in that the components in lavender can scavenge and inhibit free radicals, thus achieving the purpose of antioxidation.