I have used frankincense essential oil for pain and inflammation on different parts of my body. I have a calcified gallstone and one day the sudden pain was intense. I remembered reading about frankincense oil. I had some on hand and put it topically right over the gall bladder and almost immediately the pain stopped. I was a believer and have used it on my knees also. This is something to always have in your medicine cabinet. It was a Godsend to me.