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MANGE: (THERE ARE TWO TYPES OF MANGE)

DEMODECTIC MANGE (also called "Red Mange") is caused by a microscopic mite called Demodex canis. All dogs raised normally by their mothers possess this mite as mites are transferred from mother to pup via cuddling during the first few days of life. (After the pup is older it is unable to pick up demodex mites. English Bulldog puppies raised by hand, do not ever get demodex mites.) For some reason, conditions change in certain dogs to allow demodex mites to "gain the upper hand;" the mites proliferate and can cause serious skin disease. Mites are not transmitted to people or other dogs except from mother dog to pup as described. Demodectic mange (unlike Sarcoptic mange) is not contagious. Mites live inside hair follicles - a difficult place for miticides (chemicals that kill mites) to reach. Mites are a normal residents of dog skin; it is only in some individual dogs that mites cause problems . DEMODICOSIS -- THE DISEASE ITSELF

Demodectic mange -- also called "demodicosis"-- has three forms:
FORM #1: LOCALIZED
Usually a red, scaly, well-circumscribed lesion on the face or forelegs is present. It generally goes away on its own. Goodwinol ointment, an insecticide, may be used daily to control localized demodicosis. Hair regrowth should be evident after about a month of treatment; however, some localized cases appear "destined" to become generalized and no treatment will prevent this from occurring.

When ointment is used, rubbing the medication on the area may break off the weaker hairs at the margin of the lesion. The lesion may thus appear to get larger at first. Antibacterial gels are also used against localized demodicosis and associated skin infections. Often it is best not to treat this condition and to simply allow it to resolve on its own.

FORM #2: GENERALIZED
The entire dog is affected with patchy fur, skin infections, bald, scaly skin. Most generalized demodicosis starts as localized demodicosis.
* ADULT ONSET-- Most demodicosis occurs in young dogs. An older dog should not
get deodicosis unless it has an underlying problem with its immune system, possibly even cancer. A veterinarian should be consulted regarding possible primary diseases.
* JUVENILE ONSET -- 30-50% of dogs under age 1 year recover spontaneously from generalized demodicosis without any form of treatment. Usually treatment is recommended, though, to facilitate recovery.

FORM #3: DEMODECTIC PODODERMATITIS
STRESS AND GENERALIZED DEMODECTIC MANGE
Physiological stress is an important factor determining the degree of severity of demodectic mange.
1. Females should be spayed as soon as the disease is controlled. Coming into heat, hormone fluxes, and pregnancy are very stressful. Also, predisposition to demodicosis is hereditary and should not be passed on.

2. The dog should be fed a reputable brand of dog food so as to avoid any nutritionally related problems.

3. Keep the pet parasite-free. Worms are irritants that the pet need not deal with and fleas may exacerbate the itchiness and skin infection.

4. Keep up the pet's vaccinations.

5. The mites themselves cause suppression of the immune system so the pet needs every advantage to stay healthy.

PROGNOSIS
The younger the dog, the better the chance of cure. In many cases of adult-onset demodicosis, the disease is controlled by dips and baths but cure is not always possible. Some cases can never be controlled.TREATMENT OF CHOICE -- IVERMECTIN
Ivermectin is a broad spectrum anti-parasite medication generally used for food animals and horses. It is licensed for use in dogs and cats as a heartworm preventive and as a topical ear mite therapy at this time thus the use of this medication to treat demodicosis is not approved by the FDA. When ivermectin was a new drug it was hoped that it could be used against demodectic mange mites. At first it was found ineffective but later it was determined that daily doses are needed (most other parasites can be controlled with wormings spaced several weeks apart.) Ivermectin is inexpensive relative to Milbemycin and involves no labor intensive bathing. It DOES, however, taste terrible if given orally (it may be necessary for the owner to learn how to give ivermectin as an injectable treatment.)


SARCOPTIC MANGE
(also called "Scabies") is the name for the skin disease caused by infection with the Sarcoptes scabei mite. Mites are not insects; instead they are more closely related to spiders. They are microscopic and cannot be seen with the naked eye.
Adult Sarcoptes scabei mites live 3-4 weeks in the host’s skin. After mating, the female burrows into the skin depositing 3-4 eggs in the tunnel behind her. The eggs hatch in 3-10 days producing a larva which, in turn, moves about on the skin surface eventually molting into a "nymphal" stage and finally into an adult. The adults move on the surface of the skin where they mate and the cycle begins again with the female burrowing and laying eggs.
The motion of the mite in and on the skin is extremely itchy. Further, the presence of mites and their eggs generates a massive allergic response in the skin which is even more itchy. Mites prefer hairless skin thus leaving the ear flaps, elbows and abdomen at highest risk for the red, scaley itchy skin that characterizes sarcoptic mange. It should be noted that this pattern of itching is similar to that found with airborne allergies (atopy) as well as with food allergies. Frequently, before attempting to sort out allergies, a veterinarian will simply treat a patient for sarcoptic mange as a precaution. It is very easy to be led down the wrong path (pursuing allergy aggressively) if one considers sarcoptic mange an unusual or unlikely possibility.
As the infection progresses, eventually most of the dog's body will be involved. Classically, though, the picture begins on the ears (especially the ear margins), the elbows, and abdomen.

The term "Scabies" refers to mite infestations by either Sarcoptes scabei or other mite species closely related to Sarcoptes scabei. While Sarcoptes scabei can infect humans and cats, it tends not to persist on these hosts.

DIAGNOSIS
When an animal with sarcoptic mange scratches itself, it breaks open the tunnels that the mites have burrowed into and the mites are killed (though the itch persists due to toxins in the skin). The result is that the mites can be very difficult to confirm by skin scraping tests. (Probably mites are confirmed in 50% or fewer of sarcoptic mange cases).
Since negative test results do not rule out mite infection, a "Maybe Mange" test is frequently performed. This consists simply of treating for sarcoptic mange and observing for resolution of the signs within 2-4 weeks.
Of course, if mite presence is confirmed by skin scraping, then one knows immediately the cause of the itching and need not be concerned about allergy possibilities or other diseases and the condition can be addressed with confidence.
BIOPSY - Mange mites are rarely seen on a skin biopsy sample, though, if the sample is read out by a pathologist who specializes in skin, the type of inflammation seen in the sample can be highly suggestive of sarcoptic mange. This is an example of a skin disease where it makes a difference whether the pathologist reading the sample specializes in reading skin samples


TREATMENT
While sarcoptic mange is difficult to diagnose definitively, it is fairly easy to treat and a number of choices are available.
DIPPING - Anti-bacterial or anti-itch shampoos proceed one of several anti-mite dips. Paramite dip (an organophosphate), Mitaban dip (Amitraz), and Lime-Sulfur dips given weekly are usually effective. Disease typically resolves within one month. Dips are often used in combination with one of the other treatments listed below.
IVERMECTIN - This is one of the most effective treatments against Sarcoptes scabei yet is off-label as far as the FDA is concerned. There are several protocols due to the very long activity of this drug in the body. Typically an injection is given either weekly or every two weeks in 1-4 doses. In most cases this treatment is safe and effective but some individuals have a mutation which makes ivermectin very toxic at the doses used to kill mites. These individuals are usually of the Collie family: Collies, Shetland Sheepdogs, and Australian Shepherds are classically affected. There is now a test that can determine if any dog has the mutation that makes ivermectin use dangerous. Selamectin is an ivermectin derivative recently marketed for the control of fleas, roundworms, hookworms, ticks, ear mites and sarcoptic mange mites. Normal monthly use of this product should prevent a sarcoptic mange problem but to clear an actual infection studies show an extra dose is usually needed after 2 weeks for reliable results.


GAS
You can sometimes avoid this with diet. Nutro food has almost totally eliminated the gas problem, but each english bulldog puppy is different. Charcoal Bonio biscuits are great for a windy dog as the charcoal will help soak up the internal gases.



VETERINARY CARE
Please try to find a vet that understands the englih bulldog, this breed is a hard breed to anesthetize, so be sure that the vet you have chosen is aware of this fact and try to only have your bulldog put under when absolutely necessary. English bulldogs also have very shallow joint sockets and a vet that is unfamiliar with the breed may misdiagnose these as joint problems. Almost every Bulldog will have a slightly elongated soft palate which is why they snore, this is because of the shape of their heads and because the entire throat is being stuffed into a space that is too small in comparison to other breeds - in severe cases it will restrict your english bulldogs ability to breathe and will need surgery (see above ailments) , but if your dog is comfortable then it’s best to leave it be, so be aware - if your vet informs you that he needs to resection the soft palate this may not be the case at all. English Bulldogs with severe soft palate problems will overheat easily, find it very difficult to cope with any form of exercise and may regurgitate their food. If there are other english bulldog owners in your area ask them who they go to and at least ask your vet what his/her bulldog experience is.

...Caring For Bulldogs Continued

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