Hi
I also had sentinal node biopsy last thursday - I went to nuclear medicine for the "mapping" the morning of the operation where the tumour was removed and they ended up taking 5 nodes for testing. I did not have a drain put in thankfully so can't really help you with that. Find 2 piece outfits easier for examinations anyway. And yes I got a pillow for between the breast and my arm and also a bag for a drain given to me on discharge from hospital. Lovely of those to donate these things to those of us who need them. Marg x