Cat Flea Collars

[Frieda]

I don't know whether anyone else has had this happen to them, and I was surprised there was no advice on what to do on the packaging. Anyhow the story:

We have a cat here called Smudge the S*&t. I decided to put a flea collar on him but I forgot about Izzy and Smudge's game, where smudge offers himself as a sacrificial lamb to be defleaed and dragged around (and he does flops right down in front of the dogs). Ceejay was around this morning but noticed Izzy wasn't following me, called and she came out looking very down, I noticed straight away the foam on her mouth and washed it out sideways both sides for about 10 minutes. My OH mentioned the flea collar and thought that would have been the culprit (I thought cane toads but don't have any here at the moment).

I went to have a look at the packaging and all it saids is not to chew on the collar and not how to treat the cat/dog if it occured. Has this happened to anyone else? I am just curious. I am kicking myself for not thinking about where Izzy grabs the cat on the scruff. Izzy is back to normal (well as normal as Izzy can be).