Put the herbs in a glass jar and pour the oil over them. Put the lid on the jar and keep in a cool, dark place, shaking daily for 4-8 weeks.
A faster way is to use the stovetop infusion method instead. Add the oil and herbs to the top of a double boiler over medium-low heat. Heat gently for 1-3 hours, refilling the water in the bottom pot as needed.
Strain the herbs out with cheesecloth or a fine mesh strainer.
Use like you would regular baby oil.
Notes
This recipe is very soothing and great for any irritated skin, including eczema!