<human>: Could you distill the essence of the text into 1-3 sentences?

She has become very reluctant to eat and for the first few days regurgitated every meal then didn't eat at all for 3 days, so I took her to the vet. The vet said she's not unwell (after a thorough check-up) and is just suffering from the stress of moving house. The vet administered a steroid injection to boost her energy and appetite, and prescribed Antepsin 1g tablets (1 tablet three times a day) and Zantac syrup (twice a day, 2 hours after the tablet), followed by a small amount of 'recovery' food designed to be high in nutrients and calories but gentle on her stomach in order to promote her appetite. She loves this food and will eat it without regurgitation. We have been advised to feed her poached chicken and boiled rice for the next 5 days. The problem now is that she is just clearly very, very depressed and has no interest in playing whatsoever. She is 3 years old in a few weeks and is usually a bright, energetic, playful and happy dog. Now she just lies on the floor and barely even responds to her name, though she is still enthusiastic about her walks (possibly because she thinks we are leaving this house for good each time we take her out). She also soiled the house 2 nights ago, which she has never done before as an adult. I work from home so she is never left alone here, and we have another (elderly) dog who is always here too. It's worth adding that the old dog has adjusted beautifully and almost seems happier here than in our old house, playing more frequently than usual and eating fantastically. Is this depression likely to solve itself once she becomes familiar with her new surroundings, and does anyone know how we can help her in the meantime?
<bot>: How can we help our depressed dog, and is this likely to be a temporary thing or is it possible she will never relax here?