Thumbs up! She will be ok!
I had participated at surgeries of both of my girls, and Grace was spayed just 3 weeks ago (or so, I even do not remember exactly now).
The recovery most depends on dog and what anesthesia they use.
In Grace's case she was a bit dull and sleepy for 24 hours after surgery. She was drinking water but womited a lot on the forst day. The next day we started to give her very small amounts of food, like 5 bits of kibble each time every second hour.
With my other girl Betty it was just few hours of sleepiness, no womiting and she had food just few hours after surgery like nothing. So it really depends how the dog is. betty's surgery went all wrong and she lost a lot of blood, Grace's surgery went fast and easy. Reactions were opposite.
Instead of e-collar we just dress up the t-shirt opposite down, and tie it to the collar (back legs through the sleeves, and tail through the head hole
Teach her to show her tummy so you can keep an eye on the scar. On first day a drop of blood is ok, but not on the second day or later. If all goes ok, no need to put any stuff on it - dogs actually heel better if no medications are covering the scar. If it's seems to get gangy, ASAP to vet.
If your girl is bouncy, short lead for potty breaks only - not any off lead potty breaks at all for 10 days until stiches will be removed. Large dogs can be so silly and stiches will be ripped off... Not a pleasant thing, really! So keep her on lead outside and try to keep her calm inside the house too (it is the hardest bit for us as Grace just wanted to go bonkers again every 10 minutes).
After ten days or so (watch how the stiches look) they must be removed. I was overprotective and removed 2 stiches (both ends, from outside to inside the scar) a day (I do it by myself, it is easy, Grace did not felt it at all).
The time to remove stiches is when they are going pink and swollen a bit.
if one stich is lose (it happens sometimes) but scar looks ok, no worries. Only serious rule here is - on lead all the time when walking, no sport activities like running, jumping, playing with balls, with oter dogs and so on. Keep her calm, and maybe really insted of e-collar which is really uncomfortable, use the t-shirt - my dogs accept it really easy, they just thinks that mummy is getting a bit OTT or had watched paris Hilton on TV too much
Spaying in general is really easy thing. All will be OK!
