As you already know, one of the very effective ways to use essential oil to harmonize the work of a particular chakra is to massage the projection of the chakra on the human body. There are two ways of such massage.
apply 3-4 drops of oil, but do not rub, on the projection area of the chakra, lie for 30-40 minutes, visualizing how the energy center unwinds and shines with the color of the chakra with increasing strength: muladhara-red, svadhisthana-orange, manipura-yellow, anahata-green, vishudha-blue, ajna-blue, sahasrara-purple, like a rainbow.
Apply it to your palm, and massage clockwise and counterclockwise on the front and back areas of the chakra projection an equal number of times in both directions.
You need to practice massage for at least a week for each chakra, and it is better to do it for 21 days.