OMGoodness that looks terrible
Poor baby.....
Kodi had the same thing happen when he was a baby.
she cut him on the neck and on the underside of his leg and tried to hide it.....
He had 12 stiches! They did pay the bill also...He was a great dog never moved
now to this day and he is 6 he shakes when I groom him....
I am so sorry this happened to your Rex..