You might consider using emu oil. Besides being an excellent moisturizer, it can relieve arthritis pain, and it has anti-inflammatory properties. It seems to be useful for different skin conditions like: psoriasis, eczema, cuts and burns, it is very good for mature skin. Also because it penetrates deep in the skin it is used as a penetration agent for other actives. As to your questions about how much to use of the EOs . . . for therapeutic usage, you may use 60 drops EOs to an oz of carrier oils.