The painkiller (Loxicom) and the pill was no problem this morning.
My neighbors and I teamed up and it took less than a minute. It seems practice really does make perfect!
She's still not eating, and she's drinking very little, so I did feel concerned. Luckily, my sweet, fantastic vet called me to ask how things were going, and she said the goose needs rest more than anything else. I shouldn't worry too much about the water yet, as she got lots of fluid during the surgery. AND she'll be at the clinic tomorrow Sunday, so if need be, she can take the goose in.
She also suggested giving her a short bath - and drying her thoroughly afterwards - but after I put the goose on her nest to nap, she did not want to leave it. She's making little happy noises, and when I tried to take her out, she jumped right back in. She's got water right next to her, and every half hour I coax her into drinking a sip or two.
She has pooped once this morning and once this evening, so she's not all dried up.
I guess I'll try my baster thingy (a soft acrylic ear rinsing bulb) tomorrow, if the bath doesn't get her to drink.