First create a double boiler to infuse your olive oil with the calendula.
WHOA! Hold the phone! Say what? Okay that sounds fancy schmancy but it's so not at all. It's really easy. Get a small sauce pan and put about an inch of water in it. Heat it on the stove top over medium heat. Find a glass bowl that sits on the sauce pan, making sure that the glass does NOT touch the water in the pan.
Add the olive oil to the glass bowl, and toss in the calendula flowers. Stir them up so that the calendula is covered by oil. Let it heat slowly for 30-60 minutes.
When it's done infusing, your nose will know! The calendula will become fragrant and the olive oil will take on a green hue.
Remove it from the heat and strain the flowers out of the oil.
Return the infused olive oil to the double boiler.
Over low heat, add in the coconut oil, shea butter, and beeswax. When those have melted, remove the mixture from the heat and let it cool for 15-20 minutes.
It should be cool enough to touch, because you don't want to add essential oils to a screamin' hot mixture, else it will destroy the medicinal properties of the essential oil.
When it has cooled enough to touch, add in the essential oils and stir them around. Pour the mixture into an airtight, glass (yes glass is important!) container.
Pop it in the fridge to let it harden.
Recipe by Scratch Mommy at https://scratchmommy.com/diy-healing-hand-salve/