Lotech,
Sorry to hear that you have additional cancer issues.
I hope you had a good Christmas and New Year, and were able to spend time with your family and friends. Cancer or not, the holidays are time to celebrate with those close to us.
Looking at other sites, the numbers for Keytruda are looking better and better, now that the FDA trials reports are fading and earlier user (after platinum chemo) reports are coming in. I hope you will see results such as you describe for your father in law; thank goodness the research continues on BC.
The good news, as I understand it, is that the side effects from Keytruda are minor compared to chemo (I just finished the second round of Cisplatin and Gemzar) so I hope you will be much more comfortable.
Keep your eye on the goal and keep us up to date. We are pulling for you.
Best,
Jack