We adopted a 2 year old female staffy 2 months ago. She came with a few issues, house training - we managed to crate train her and this is no longer an issue. But her main issue is dog reactivity where she gets extremely worked up and frustrated at the sight of any dogs. We have had a few good interactions with very submissive dogs but usually it is whining turning into grumbles and growls. Working with a trainer we made some progress in that we could usually distract her somewhat with treats and it was managable. We have just got back from a week long holiday abroad during which time she was with a dog sitter. Since returning from holiday she seems to have regressed in her training a lot. She has had a few accidents in the house even when we are in the room, she is very jumpy and goes crazy when we let her out of crate, but most of all her reactivity around other dogs seems to be worse. Very growly and snarly at any dog we see. Is this usual? Is there any advice on how to deal with this and in general, does dog reactivity ever get better? It seems we had taken a tiny step forward before the holiday and now a giant leap backwards.