There should be instructions on or in the package... you have to put it on the skin between their shoulder blades
the flea sucks the dogs blood, therefore the flea benefits, while the dog detriments...
YES!
parasitism
Fleas suck the dogs blood, and causes itch. The flea is a parasite to the dog.
Advantage once a month topical flea treament for dogs and puppies is one of the highest rated in flea control for dogs. For cats, Revoltion is the best bet.
No.
Catching from other dogs/ cats and not being treated
If you have bathed the dog with a flea treating shampoo and then applied frontline flea protecting to the dogs once dried and they are still comming in covered with fleas i would say that there is a serious flea problem/infestation in the area that you are allowing the dogs to be in.
It is important to consult with a veterinarian before using any flea prevention products on breeding dogs. Some products may not be safe for pregnant or nursing dogs, or may need to be adjusted in dosage. Your vet can provide guidance on the best flea prevention options for breeding dogs.
The most effective flea treatment options for dogs in the UK include spot-on treatments, oral medications, and flea collars. These products are available from veterinarians and pet stores and can help prevent and treat flea infestations on dogs. It is important to consult with a veterinarian to determine the best option for your dog's specific needs.
Dogs with scratch, and lick themselves
Because her children had gone to the dogs!