the level of fleas infestation is still high, then it is possible that you did
not apply the product properly and/or did not treat your house at the same time
as you treated your pet.
life cycle of fleas is between 3 weeks and 6 months depending on the humidity
and temperature. And one treatment isn’t enough to eliminate a high flea
infestation. The manufacturer of Frontline (Merial) advises that pets should be
treated for at least 3 months for adequate protection.
is also important that you understand how spot on products work. For the spot on
product to kill the fleas, the fleas have to bite your dog and ingest the active
ingredient of the product. Then within 12- 24 hours after contact, the product
takes effect and kills the flea. So the product is effective, if it is killing