This is very interesting, and reminds me that my father passed on the old cure of putting cream, dairy cream, in a sore eye, conjunctivitis, whatever. That came straight out of the 1800s; his mother died in the 1930s aged over 90.
It was just applied like a cream with the finger.
R
http://www.mindbodygreen.com/0-12191/why-everyone-should-get-to-know-ghee.html
www.ancientorganics.com/about-our-*ghee
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www.amritaveda.com/learning/articles/*ghee*.asp