Oh, I did take her to the vet last Monday. Sorry I didn't mention that. She is FIV/FeLV negative, 10.6 pounds, 5 weeks pregnant (then, now she is 6 or so), about a year and a half old, and has good teeth and eyes. The only issue he found with her was the ear mites.
He recommended Revolution for use in pregnant cats, but I just didn't want to buy it through his office because it was so expensive. I work with a rescue group (Homeward Trails) and I knew they'd be footing the bill, and I wanted to save them some money. My rescue group usually uses Acarexx for ear mites, but it is not recommended for pregnant cats. Pfizer's website says that Revolution is safe in pregnant and nursing cats and dogs.
As for trying to clean her ears out: someone recommended I use a Q-Tip with a thick oil (olive/canola) on it to smother the mites. My boyfriend held the cat's hind legs and the scruff of her neck, while I held the Q-Tip and her head. She is quite the little hellion of a stray cat, however, and shook her head violently every time I got in her ear. I was afraid I would deafen her or something. I've tried cleaning out her ears but she is absolutely out of hand. I also have to say that I'm a little scared to hold her midsection too tightly because there are a lot of babies in there. I know that sounds like a copout, but it really isn't; the last thing I really feel like doing is putting a prescription drug on a pregnant cat, but that is what it has come down to.
So...thoughts? 24 hours sounds great, and I hope that is the case. Also: is Revolution applied to the shoulders because the animals can't lick it off? I'm guessing that's why it's put there.
Any advice on putting it on her? Is it a quick procedure? She's very feisty, so the quicker the better. There will be two people involved in it, so I'm hoping it won't be too hard.