We've just come back from a holiday in Wales and whilst there my dog got 5 ticks! We kept spotting and removing them and also treated him with frontline. Quite the week as he has never had even one before in his life 🤪 Now we are home I was stroking him and around the scruff of his neck there is a little sore and a load of what looks like black dust. Nothing is alive, or at all bug-like. I've brushed a lot of it out now but there is a picture attached. I am wondering if it's a dried up dead tick that's been killed by the frontline, or if perhaps we have a new problem now and it's flea dirt?! I can't see any of the dust anywhere else on him but he's tri-colour so it's not easy to see.