No, but the fleas can feed on the dog's blood. After 24 -48 hours a female flea will lay eggs with the blood feces which falls off the dog which, re-starts the life cycle.
yes
it means something is wrong with their eyes or they are unhealthy
Not at all But if you do notice a rash, or skin irritation, check with a vet, because your dog may be having an allergic reaction to the flea treatment.
No. Fleas themselves cannot have fleas, but they can have these things called "mites".
An army of fleas attacked our dogs,explain it?
Dogs scratch for many reasons. They could have fleas, dry skin, dandruff, ticks, or just an itch. They can not get lice.
Anything hairy and warm, they will also live on humans under their clothes.
Some dogs can. Not all dogs.
Fleas make dogs suffer. They dont help one bit...
Fleas can transmit tapeworms to dogs, but not roundworms, hookworms or whipworms.
Yes, fleas can and do carry diseases that can infect dogs. The most common flea-borne disease of dogs in the United States is tapeworms. This is why a monthly flea/tick preventive medication is a good idea.
Neither ! Fleas will feed on any warm-blooded animal (including humans !) - Dogs will survive quite happily without fleas.. and vice-versa !