I had a lump in my breast the size of a large grape. In this case I didn't get it checked so I don't know what kind it was. I took 2000mg of l-lysine a day in 2 divided doses (1000mg in the morning, 1000mg in evening) and the enzyme serrapeptase enteric coated tablets that were 5mg each. I took 3 tablets of the serrapeptase on an empty stomach in the morning, and again another 3 in the afternoon on an empty stomach. It took about 3-4 months, but the lump is gone!!!