Add your chamomile, castor, emu, rosehip seed, and arnica oil to the top pan in a double boiler.
Boil your water to warm the oils and melt the emu oil down completely (the emu oil is a bit thick, but the rest shouldn't need melting down, really).
Once the oils are all liquid and mixed together, add your beeswax.
Continue heating your oils and beeswax until the beeswax is completely melted.
Once everything is liquid, remove from heat and allow to cool for a minute or two. You want to make sure you don't allow it to cool enough for it to harden. (If it does, just return it to the heat and melt it down again.)
Once cooled for a couple of minutes, add your essential oils.
Pour into tins or whatever container you would like to use. (I use 2 oz. plastic containers, but even small 4 oz. jelly jars work great for this).
Allow to cool and apply with your fingers to the painful area 3x daily until pain is gone. Can also be used for monthly cramping.