At one point, we had to keep our kitties separated. At night we had to put one in a secondary bedroom to prevent him from howling right outside our bedroom door all night.

Then he would howl from down the hall. We bought one of the plug in diffusers and it seemed to help. Either that, or he just got used to being in his own room.

I was willing to do whatever I had to.

We've used them but it's really hard to tell if they're actually helping. can you get somebody to come to the house to watch kitty?

They have not really worked for us. We have tried the sprays and the calming collars and have seen no difference. In fact, the collar totally freaked one of the cats out.

It does seem to help some, but it's hit or miss.

YES, me and my cats love the plug in!

The plug in works better for an entire area - the sprays only for inside a cat carrier or on cats bed.... also I really dont like the alcohol odor that the spray has.

How long is this for - she may be happier hiding out in a room the first few days or so until she feels safe. Bring some bedding with hers/your scent on it.

Thanks, all! Yes, I'll tell them to let her hide if she wants to. Just to make sure food and water are disappearing. I'm going to bring her own basket that she dozes in daily, plus a throw that both she and I use.

We bought the kind that is in a spritzer bottle, not an auto-dispenser. I use the spray on wall corners (where they would naturally rub their heads to mark) also inside the carrier. Don't do it when they are right there as the spritzing sound is like a cat hissing and you don't want them associating the smell with bad things. We are in the military and have moved seven times with our cat, three of them overseas. The first couple times were before we found out about the pheromones and they were awful for her, it took her months to adjust to her new home. The last five times were with the pheromones and were like night and day. Within a week she was completely comfortable with her new home. I would also use it when we went into temporary housing (which was usually less than a month) and it helped there as well.

I ended up buying the spray rather than the diffuser, after reading reviews for the latter that mentioned them overheating, and not wanting to give the cat sitter that. We sprayed all her bedding, the carrier, and everything else we were sending with her. Hard to tell if it made any difference. They said she hid under the bed for 2 days, which is the same thing she did at our son's, and she knows him.

I'll try it again when my daughter's cat comes to stay with us. Her cat does not like other cats, so if it works on her, we'll know for sure.