I had my initial breast implant surgery four years ago and a revision with both implants exchanged two years ago. The revision was successful but now two years later my right breast feels firmer then the left. If it stays as it is I'm ok with it, I just don't want it to get worse. I Asked my surgeon about Singulair but he never prescribed it to anyone but was happy for me to try it for three months. Is it safe, what about side effects? Is it likely to help or stop a further progression of cc?