Ask the vet.
Yes and it also helps with ticks.
Heartgaurd is just heartworm prevention. To prevent fleas you need a different product. Advantage, Frontline, or Comfortis to name a few. If your looking for a flea and heartworm in one, Sentinal is a good choice. Heart Guard
YES!
yes
Possibly if they drink it.
Yes and it also helps with ticks.
Flea infestation is common in households where dogs aren't given flea prevention. Fleas imbed themselves in carpeting and furniture fabric where the dog lays and they multiply quickly.
Heartgaurd is just heartworm prevention. To prevent fleas you need a different product. Advantage, Frontline, or Comfortis to name a few. If your looking for a flea and heartworm in one, Sentinal is a good choice. Heart Guard
No, swimming in chlorine pools does not prevent fleas on dogs. Also, too much of the chlorine could be harmful to the dog. Try getting some flea prevention from the vet or from the store.
Advantage flea prevention products can be easily purchased off of the company's official website. Alternatively, Amazon and eBay are two sites that also sell these items.
probably
the flea sucks the dogs blood, therefore the flea benefits, while the dog detriments...
yes
YES!
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.
Possibly if they drink it.