I have responded well to the Keytruda treatments. I go every three weeks for the infusion treatment and have not had any noticeable unpleasant side effects. Keytruda has been a game changer for many patients with cancer. When I was diagnosed about a year ago with Merkel Cell Carcinoma i was already stage 4 with an avocado-sized tumor in my armpit, a second smaller tumor on my chest and several small ones in my pancreas. I thought I was not going to make it much longer but thanks to the Keytruda immunotherapy the tumors have all shrunk dramatically and I am feeling optimistic that I will survive for many more years. We’ll see but so far so good. I hope your experience is as good as mine has been. Get better and be well.