The nutrical in a smaller bottle shouldn't be an issue...if someone has had a problem with that you had a bad TSA agent. All my shampoos and hair products are in small unlabeled travel bottles and no one has every stopped anything from going through.
I'd say with a 3 hour layover...you have PLENTY of time to get the dog OUTSIDE the airport and get back in through security for your next flight. You can walk it on the leash up and down the outside sidewalks (or better yet if the airport has a dog area outside go there) which will give it plenty of outside potty time, as well as lots of good exercise to exhaust it before the long flight. If you exercise it enough during layover it will probably sleep through most of the flight. |