Oregano oil is extracted from leaves and roots of oregano plant by steam distillation. • It has pungent and spicy aroma.. • It is used in aromatherapy. • It helps to relieve the discomfort in joints and sore muscles. Use:- • Apply it on area of skin affected by mosquito bite, it will help to kill the bacterias. It is advisable to make dilute the essential oil before applying on body or skin.