Cat anxiety after collar rash — collar-free calming options

Cat anxiety is real and often underestimated — cats are expert at masking stress, so by the time you're noticing signs, it's usually been building for a while. The good news is that pheromone-based products are genuinely the most effective calming option, but placement and consistency matter a lot. It sounds like you've already tried a calming collar and it caused a neck rash, which unfortunately does happen with some cats — so we need to find something that works without any skin contact. Before I point you toward something specific: do you know what's triggering the anxiety, what are you seeing in terms of behaviour, and is there anything that's changed recently in your cat's environment?

That makes complete sense — a new adult moving in is one of the most common anxiety triggers in cats, especially for a six-year-old who's had the place to herself. The hiding, reduced appetite, and hissing at your partner are all classic signs of territorial stress. And given the collar reaction, you're absolutely right to avoid anything worn. What you want here is a plug-in diffuser, not a collar or spray — it releases pheromones passively into the air, no skin contact at all, and works continuously in the background.

The one I'd go with is the Feliway Classic Starter Kit — the plug-in diffuser with a 48ml refill. It uses a synthetic version of the feline facial pheromone, which is the scent cats deposit when they rub their face on things they consider safe. It signals 'this space is okay' at a level that genuinely reduces stress behaviours like hiding and aggression toward people. Plug it in the room where your cat spends the most time — likely wherever she's hiding or where your partner spends time in the evening. One refill lasts about 30 days and covers up to 70 square metres. It won't flip her personality overnight, but most owners see a real shift in hiding and reactivity within two to four weeks. It's the most clinically studied option available, and for a stress trigger as specific and ongoing as a new household member, a diffuser is far more effective than a collar anyway — you need the whole environment to feel safer, not just the cat's neck.

Plug it into the room where your partner spends the most time in the evenings — the living room is usually ideal. The goal is to make that shared space feel less threatening, so she's more likely to come out and be in the same room rather than retreat. If your home is quite large or open-plan, you can buy a second refill for a second diffuser, but start with one in the social space and see how she responds. Also worth mentioning: try having your partner be the one who puts down her food for the next few weeks — scent and positive associations do a lot of the heavy lifting alongside the diffuser.

Good plan — the combination of the diffuser and your partner becoming the food provider is genuinely one of the most effective approaches for this exact situation. Give it a full month before judging it. If she's still hiding or refusing to be in the same room after four weeks, it's worth a vet conversation to rule out anything underlying, but most cats in her situation respond well once the environment starts signalling safety consistently.