External parasites, such as fleas and ticks, live on the body of the host and produce an infestation.

Flea saliva that’s injected into the dog when they’re bitten could cause an allergic reaction called flea allergy dermatitis. This leads to itchiness and could potentially cause more complicated skin ...

GREENSBORO, N.C. — It’s an all-too-familiar scenario pet owners dread. First, your furry friend can’t stop scratching. Then you are itching, too! You guessed it–Your pet and your home are infested ...

Super macro close up of brown, amber colored flea, Siphonaptera on human skin. It survives as external bloodsucking parasite of mammals and birds.© S.Rohrlach/iStock via Getty Images Fleas can cause a ...