My cat hisses at my dog after vet visit. How can I reintroduce them?

That is very strange! It could be that something startled Beanz, she got very frightened, and reacted by attacking the closest thing to her: The dog. I would separate them, and slowly reintroduce them to each other. I would keep them in rooms separated by a door. This way, they can get used to the smells and sounds of each other without contact. Make sure Beanz has a litter box, food, and water in her room. You can place a blanket with the dog's smell in the her room, and a blanket with her smell in the dog's room. I would also consider get a Feliway for Beanz and a DAP for your dog. These are pheromone diffusers that help with anxiety and should also help ease the transition. Once both pets seem relaxed with the current situation, swap rooms placing Beanz in the dog's room and vice versa. You can do this switch several times over the course of this reintroduction. Once they are both comfortable with the smells of each other, it's time for them to meet face to face again. I would introduce the dog on a leash to Beanz while she is in a cat carrier or on the other side of a baby gate. Reward the dog for being calm and quiet near her. Once they seem comfortable with each other, the baby gate can be taken away. Make sure Beanz has a cat tree where she can escape from the dog as needed.

Yes there is something you can do to help Brandy and the cat get along. I will give you suggestions I make for when bringing a new puppy into the home, but it will work for your dog and cat. I would re-introduce them, which should be done slowly. For now, I would keep them in rooms separated by a door. Make sure your cat has a litter box, food, and water in it's room. This way, they can get used to the smells and sounds of each other without contact. You can also place a blanket with the Brandy's smell in the cat's room, and a blanket with the cat's smell in the Brandy's room. I would also consider get a Feliway for your cat and a DAP for your dog. These are pheromone diffusers that help with anxiety and should also help ease the transition. Once both pets seem relaxed with the current situation, swap rooms placing the cat in the dog's room and vice versa. You can do this switch several times over the course of the introductions. Once they are both comfortable with the smells of each other, it's time for them to meet face to face. I would introduce Brandy on a leash to the cat while he is in a cat carrier or on the other side of a baby gate. Reward her for being calm and quiet near the cat. Once they seem comfortable with each other, the baby gate can be taken away. Make sure your cat has a cat tree where he can escape from the dog as needed, and don't allow Brandy to chase the cat.

It does take time. I can give you a method that has worked for me, but know hissing and growling is ok. It's her way of letting the dog know she isn't comfortable. Aggression is not ok (hitting and biting), but the behavior is ok. I would keep them in rooms separated by a door. This way, they can get used to the smells and sounds of each other without contact. Make sure your kitten has a litter box, food, and water in their room. You can also place a blanket with the dog's smell in the kitten's room, and a blanket with the kitten's smell in the odg's room. I would also consider get a Feliway for your kitten and a DAP for your dog. These are pheromone diffusers that help with anxiety and should also help ease the transition. Once both pets seem relaxed with the current situation, swap rooms placing the kitten in the dog's room and vice versa. You can do this switch several times over the course of the introductions. Once they are both comfortable with the smells of each other, it's time for them to meet face to face. I would introduce the dog on a leash to the kitten while she is in a cat carrier or on the other side of a baby gate. Reward the dog for being calm and quiet near the kitten. Once they seem comfortable with each other, the baby gate can be taken away. Make sure your kitten has a cat tree where she can escape from the dog as needed, and don't allow the dog to chase the kitten. I hope this helps!

This may be difficult to correct but it generally can be done. Continue using the diffuser. Try switching litter boxes, beds, and rubbing each cat with the same towel to try to get them to smell like each other. Here are some links which may be helpful: https://www.petcoach.co/article/7-ways-to-calm-an-anxious-cat/ https://www.petcoach.co/article/bringing-home-a-new-cat-or-kitten/ Here is a great article about cat's instinctual needs: https://www.petcoach.co/article/why-every-cat-needs-a-place-to-climb/ Setting aside 30 minutes a day for vigorous play for both cats or switching the food to Royal Canin Calm may help. The veterinarian can also prescribe medications which can help with aggression. I hope this helps and please feel free to post any additional questions.

Oh dear, how stressful! Unfortunately it can be common for cats to lash out when one cat in the household suddenly smells or acts different - as they tend to do when they come home from the vet. Most of the time they go back to their normal interactions once the strange smell (in this case, from the vet clinic) wears off and the cat relaxes and acts like herself....but in your case, there's nowhere for Tribble to hide and isolate herself while she readjusts to being home. The most important thing right now is to not allow them to fight or have negative interactions. As long as they can be kept separate while they both settle down, they will probably do ok - but if they continue hissing and growing, and worse yet if it escalates into a fight, that could permanently damage their relationship. I would absolutely keep them separate until they seem to be relaxing. I understand that'll be challenging in a 1 BR living space - but if possible, you could put 1 in the bathroom with her own litterbox & food, and then have them switch places tomorrow so they can get reacquainted with each other's smells. If that's not possible, you may need to crate them both while you work on their reintroduction. Perhaps you could borrow dog kennels so they can each have their own living space while they're confined. I know this isn't an easy answer - but the most important immediate intervention is to do what you need to do, to keep them from fighting while the stress levels come down! Finally, adding a pheromone diffuser such as Feliway Multicat may help promote a calming atmosphere. I hope this helps!

There does seem to be an unusual phenomenon that when one animal attends the vet for a time its companion can react badly on its return. Possibly due to unfamiliar smells. Usually it settles after a week or so. If not you could try bathing the cat or invest in a pheromone diffuser to try and settle them.

If Gizzy is going out into the garden, then she could come back in smelling differently and that's causing Fergie to be upset. I can give you a method to help them get along again. I would separate the cats, and slowly reintroduce them to each other. Take Fergie, and put her in her own room with her own food, water, and litter box. Keep the door closed, and for a few days, feed them both treats on other side of door so they associate each other's smell with a good experience. Then let Gizzy in Fergie's room while she is in a cat carrier. They can smell each other, but not be in contact. If either becomes upset or show signs of aggression, remove Gizzy from the room, and try again later. Praise them when they interact appropriately. When they are interacting well with each other through the carrier, you can let Fergie out of her room, and see how she interacts with Gizzy. Praise them when they interact appropriately, and separate them with any sign of aggression or upset. I would get a cat tree with lots of shelves to give the cats vertical space to get away from each other. I would keep Fergie in her room when you go out until they are comfortable with each other.