My benign tumor is the least of my problems however it would be awesome to have it get smaller or even removed. I tried to remove it with black salve but it didn't work. Penny Yu March 07, 2016 05:04 Follow Magnesium cream or oil shrinks benign cysts. I use that along with Spooky2 with great results Have more questions? Submit a request 0 Comments Please sign in to leave a comment.