Demodectic Mange (also called Red
Mange) is a non-contagious skin disease. It is caused by a tiny
parasite (mite) that lives in the hair follicles and skin glands of
the dogs. Puppies are infected with mites from contact with the
skin of their mother while nursing.
Red Mange is seen in two forms:
1) Localized mange which is confined to a few small areas such as
the face or front feet, and is relatively easy to treat.
2) Generalized mange is one of the
most severe canine skin disease, and treatment is NOT always
successful!
Since a hereditary predisposition is
suggested. Affected dogs should be spayed to prevent passing the
disease on to their offspring. Even though all pups in the litter
may not show signs of Demodex, they still may be a carrier capable
of passing on the disease to their offspring. Dogs should also be
spayed to reduce the stress of the estrus (heat) cycle which may
cause acute flare-ups of this disease.
The mites are present in the skin of
many healthy dogs and do not cause disease. It is thought that pets
diagnosed with Demodectic Mange are immuno-deficient--not able to
fight off the mites as a healthy dog would do. This allows large
numbers of the mites to appear.
Demodex occurs almost exclusively in
young dogs (3 months to 1 year of age). When the disease is seen in
older animals it is often the sign of another more serious problem
and is often more difficult to treat. Animals with small, local
lesions of Demodex usually recover well without recurrence.
Diligent, time-consuming
therapy is required for full recovery in the severe, generalized
cases. Because a defect in the immune system plays a part in this
disease, some dogs DO NOT recover! If the skin infection spreads to
other parts of the body, the dog may become systemically sick and
even die.
Severely affected animals that do
recover seldom show signs of the disease again. However there are
some dogs that require a periodic treatment for the rest of their
life to keep the disease under control.
Symptoms:
The skin may become infected with bacteria--eventually allowing the
hair follicles to rupture expelling pus. The skin may become dry,
crusty, brittle, and ooze serum, blood, or pus. A strong, offensive
skin odor may be present due to the secondary bacterial
infection.
Treatment:
Medication must be individualized to your particular pets stage of
disease and clinical signs present. Your veterinarian will
prescribe the appropriate anitbiotic, shampoo, dip, ointment, and
insecticide.
The dogs hair must be clipped as
short as possible to allow the medication to reach the skin
properly.
Be sure the dog's immunizations are
up-to-date and that the dog is free of internal parasites. This is
especially important since the dog's immune system is already not
working as it should be.
Be prepared to diligently treat your
dog for 6-12 weeks minimum. YOU will be the major reason your pet
recovers.
Your dog usually will look
WORSE for 2-4 weeks after treatment is begun because of the hairs
that are already affected when treatment is begun. Recovery takes a
minimum of 6-12 weeks in most cases. Many cases fail to respond due
to a lack of proper treatment by YOU--the owner!
The recovery rate is approximately
85% with a 6-8 treatment procedure. An additional 6 treatments will
increase the recovery rate to about 95%. 5% of affected dogs do NOT
respond to treatment and will NOT recover.