Our vet just prescribed something called "Comfortis" for Strider. It is a pill that is taken internally and kills the fleas for a month. And from what I understand, the fleas don't have to bite him. They jump on, get poisoned, jump ship, and die. Within 4 hours of eating the pill all fleas on the dog are supposed to be dead. D-E-D dead. lol. The diatomecious earth controls the fleas in his environment, but the second he steps outside dozens jump on and reinfest his poor little body. And he is reacting worse and worse and time goes by, so we needed something to just keep them from biting him at all if possible.
Anyway, since it's pretty new I googled reviews and read the whole thing carefully. A lot of people are raving about it, and there seems to have been few poor reactions, and those seem to be limited to puking the pill up or loose stools. It should come some time next week, so when it does he will be under close scrutiny and I'll give you guys some feedback about how it works for him.