Hi Tony.  I’ve just finished 15 rounds of Pembro immunotherapy.  I had minimal side effects, just a little tiredness for a couple of days after treatment.  I did initially have a mild allergic reaction to it so I was prescribed hydrocortisone and steroids as an infusion at the time of treatment, plus slowing infusion of the pembro from 30 mins to 1 hour.  Other than that, all good and nothing major to worry about at all.  Good luck.  Let me know how you get on? 

Hi Tony.  I’ve just finished 15 rounds of Pembro immunotherapy.  I had minimal side effects, just a little tiredness for a couple of days after treatment.  I did initially have a mild allergic reaction to it so I was prescribed hydrocortisone and steroids as an infusion at the time of treatment, plus slowing infusion of the pembro from 30 mins to 1 hour.  Other than that, all good and nothing major to worry about at all.  Good luck.  Let me know how you get on?