What could be causing an allergic reaction in my dog

Hi I've planted a couple of plants lately and my dog has developed an allergic reaction. I'm trying to work out what is the most likely candidate rather than pulling them all out.

Here's the list of plants
fishtail palm (caryota urens though I already had caryota mitis without causing her any trouble)
foxtail palm
Tree fern Cyathea
Shell ginger
cordylines
cat nip
canna lilies

Thanks in advance for any help.

Jason

What sort of reaction? Has your dog eaten something? Body tremours? Shakes? BeEn sick? Fur falling out? knowing what you mean by a reaction might help determine Which plant it is.

2

It's just in her eyes, we took her to the vet and she said it was either conjunctivitis or an allergy. It cleared up with her medication but came back once that was finished so the vet thinks it's likely an allergic reaction to something.

The only plant from that list that is definitely toxic to dogs are the cordylines.

I'm not sure about the others.

Chemicals used as termite barriers are toxic, what is your termite protection?