Yes, she combed Clio's fur onto some paper, then squirted some liquid onto it which highlighted something or other. I'm not exactly sure what that told her, except that she was sure it was fleas.
I think the treatment has made a difference. Physically, it's hard to tell. I think the swelling around the flea bites has subsided, but I could be imagining that.
But Clio's behaviour has improved. When we came home, she went straight upstairs. I went up to check on her a few times, and to make sure she had food and water, but she showed no interest in coming downstairs. I left her alone for a while then, when I went to go to bed, found her waiting for me at the bottom of the stairs. She then ran up a few stairs at a time, stopping to make sure I was following!
She's been a bit clingy the last few days, and that's the same, but she's really perked up.