Alright, so the vet has me medicating Petey, Olivia, and Miko. It's strep, due to stress- they think it's all the parenting they've been doing. Anyhow, Petey and Olivia are on one drop, twice a day, and Miko is on half a drop twice a day- for 14 days.
Last night I managed to spill half the bottle, so I think I'll have to go in for a refill in a few days. Darn my clumsy ways!