Well this is certainly not scientific, because there are many factors that could have made it go away.. but I occasionally get these darn cysts on my neck. And usually I can not control myself and I attempt to drain it.. sometimes it just seems ripe.. well it never is. So this time I showed incredible self control and never squeezed or lanced it. I read here about the castor oil and figured I've got nothing to loose.. In the past I tried many things from salves to tea tree to pimple cream... It was a little smaller then a small gum ball, and now it's still there but very small.. Maybe the oil worked, or it just shrank on it's own.... ???