Flea treatment for dogs?

Hoofandhound.com

Comfortis plus.

Turns your dog into mobile foea killing machines.

I've had the best luck with Revolution/Stronghold, name depends on which country it's marketed in. It's a topical but that's not the mechanism, that's just the delivery and it absorbs and then works internally like a pill would.

Use petbucket if you want to save 40%-50%. The prices are so low it seems sketchy but I've used it for a couple of years now. You don't need a prescription.

I'd hit'em with a good flea bath first then Simparica Trio or Brevecta. We use the Brevecta on the Newfoundland and Simparica Trio on the two GSDs.

Another vote for:
Hoof and hound

But I use the nexguard spectra. Does heartworms, gut worms, mights, ticks and fleas. My blood trail dog stays outside(Catahoula) got covered in fleas from a stray that came by. Wound up all in the yard couldn’t walk outside without getting covered. 2 weeks after the first pill and they were completely gone. Haven’t seen one since. They will still get ticks on them at times but when you find the tick it will be dead unless it hasn’t bitten them yet.