Although my back is still very stiff and sore, I was determined to at least sit in the saddle for her first ride at the new barn. I've been icing and continuing the anti-inflamatories and started adding heat as well, and my back's slowly getting a bit better. I got on without too much trouble, and just rode her around the indoor a couple of times in each direction at the walk on a loose rein. I wasn't too uncomfortable, but the right side of my back is still pretty locked up so I didn't want to ride her long - my right hip basically can't move at all and that can't be very comfortable for her. So I got off and my daughter rode her for about 15 minutes at the walk - that's enough for a first outing after almost a month off. She was very well-behaved, even with other horses trotting and cantering in the ring.
As a precaution, I gave her one gram of bute in case the foot's acting up a bit - we'll see how she's doing tomorrow. My daughter won't be there tomorrow, and I can't tighten the girth yet due to my back, so she'll just get a grooming tomorrow. She seems pretty settled already, which is good news. I met a couple more boarders - several teenagers and one mom, and again everyone seemed nice.