Our cat came to live with us just over a month ago. As she now has access to the outside I decided she should have flea treatment. I bought the same product as they used at the orphanage RSPCA and treated her as per instructions. She didn't like it much but I managed to get most of it on the back of her neck. It turned into a rather oily patch on her neck and she spent most of last night trying to lick it. In fact she was so vigorous in her licking that she woke us up. She has a litter tray and this morning and afternoon her poo was rather runny. She has eaten but there was a some breakfast left by dinner time, which it unheard of. When we first got her she would eat everything in her bowl in one go. Right now she is sat on the landing being really rather quiet and subdued.
I've got no experience of liquid flea treatment. Last time I had cats flea collars were the order of the day.
Well the active ingredient in that is Fipronil, which isn't dangerous (unlike some other 'of the shelf' treatments). You definitely had the cat one and not the dog one?
It shouldn't be possible for her to lick it if it's on the back of her neck (which is why you put it there), but if she did manage to ingest some it shouldn't do any lasting harm but it may make her feel a bit off colour I suppose.
So in summary I've never heard of it causing problems, but it's not inconceivable, but regardless it shouldn't be a major cause for concern. Of course though if she gets worse or seems really ill then take her to the vet.
Thanks for that comprehensive answer! I used that brand as it's what the RSPCA used so I figured it would be safe enough. If her poo and eating aren't back to normal in a couple of days I'll take her to the vets.
My two were under the weather last week after having Effipro (had it before no problems) - they were off their food, intermittent sickness and small frequent runny poos. I suspect they licked it off each other. The vet said it was unlikely, and that they may have a virus or be stressed about something, but it was a coincidence that it started 12 hours after they had the Effipro.
Yes, they are sisters and they do groom each other, particularly their heads. We tend to do flea treatment in the evening when they are relaxed and we are both at home, but that's also when they are most likely to groom each other, might do it in the morning in future as they tend to hang out separately during the day.