
I don't know about the gel, but if a pup is stuck then it's too late for the pup to take them to the vets, I read all the books and the most helpful to me on this was the leaflet that came with the whelping box. I was lucky for the first two litters - all delivered by the bitches and all fine. The third was not so easy, smaller breed and the first pup was stuck, properly breech. Fortunately I'd read the leaflet and had help. It took us both to hold her and for me to gently turn the pup so he was face down and ease him out. Then we had a race to the vets as the second pup was clearly not coming out...she had a c-section for that one which was a lot plumper than the first. The friend who helped had a bitch whelping last christmas and I went over to help, no action so off to vets. We decided to stay in car in car park fortunately - we could have stayed in the vets but bitch doesn't like the vets. When first pup on way it was clear he was stuck well inside the bitch and I struggled for a bit unsuccessfully before asking for help...being Boxing Day it was busy but vet came out and after what seemed like forever she managed to get him out. How, I'll never know...but she handed him to me with a surprised 'he's alive!' and I worked on him to keep him that way. Now he's huge! His sister eventually was born and then she had a c-section because there were two more, but they were dead unfortunately.
There will be pups you can help ease out - with experience there will be more. How the vet got this pup out I don't know - only glad she could. In many respects we'd have been better insisting on a c-section but this is only hindsight!