Helichrysum essential oil is a volatile aromatic substance extracted from the flowers, leaves, stems, roots, or fruits of the helichrysum plant through methods such as steam distillation, expression, cold enfleurage, or solvent extraction. Undiluted essential oil should generally not be used directly. Essential oils are highly volatile and evaporate quickly once exposed to air. For this reason, they must be stored in sealed bottles, and the cap should be replaced promptly after opening. Adding a few drops of helichrysum essential oil to hot foot soak water can help promote blood circulation and meridian activation, as well as alleviate foot odor and athlete's foot.