Fleas: Bites
and droppings
from these
insects can
irritate your
dog’s skin,
and some pets
can have an
allergic
response. Some
dogs may also
be sensitive
to
flea-treatment
products;
Seasonal
allergies: Your
dog’s
scratching may
be due to his
sensitivity to
allergens from
common
substances
like pollen,
weeds, dust,
mites, trees,
mold or
grasses.
Food
allergies: Many
dogs develop
allergies to
common
ingredients in
dog foods,
such as beef,
chicken,
wheat, corn or
soy.
Skin
infections: Dogs
can develop
irritating
bacterial
infections
when the skin
is damaged due
to the
presence of
another skin
disorder.
Grooming
products: Certain
shampoos and
grooming
products can
irritate your
dog’s skin.