Dogs
by Mark Nunez, DVM
Our veterinarian prescribes prednisone. 2/day for seven days, 1/day for seven days, 1 every other day for 10 days. We were told that the shot and the pills (he's had both, this is the first time using pills though) tend to last about a month, which confused me as far as the pills. Does that mean they should last until a month after the first dose, or a month after the last dose? If a month after the first does, does that mean he will be needing to take pills almost every day for as long as he is exposed to whatever allergen is causing the itching?
Dr. Mark
Dr. Nunez is a practicing veterinarian while also assisting patients through The Balanced Canine blog and his own online veterinary pharmacy. Have a question for Dr. Mark? Send it to [email protected]. You can also follow Mark on Twitter.
Want to read more from Dr. Mark? Try these, or visit his archives:
Dogs Who Eat BugsDiabetes and Allergies Combined The Dangers of Animal Bones
Dr. Nunez's advice does not replace an actual exam with a veterinarian.
- Ask The Vet: More On Pet Allergies
by Mark Nunez, DVM Daniel Y. Go via Flickr.comDear Dr. Mark,I've read that long-term use of prednisone can cause Addison's disease, Cushing's disease, and a dependence on the drug to the point where his body will not be able to produce...
- Itchy Dogs
By the Drs4pets Team Dogs scratch. Some dogs scratch a lot. Why do dogs scratch, and when should you intervene? Let’s first talk about why dogs do not scratch. One myth is that dogs begin to itch when something changes in their diet. This is rarely...
- Summertime, Fleas And Seasonal Allergies: Be Prepared
Spring is turning into summer, and nipping at its heels are the nasty fleas and seasonal allergies that warm weather can bring. While feeding an all natural, holistic dog food like CANIDAE helps maintain the health of our pets from the inside, it is important...
- Help Your Dog Cope From Allergies
People are not the only ones who experience allergies. Even dogs can have allergies too. Just like humans, dogs can become allergic to different things such as food, dust mites, pollen, fleas, ticks and bacteria. A dog can also get contact allergies from...
- Dog Allergy Treatment
First of all, this information is not intended to replace the advice of a professional veterinarian, dog trainer or pet care professional. Dog allergies, like human allergies, can come in many different forms. These dog allergies can be caused by many...
Dogs
Ask the Vet: Dogs and Allergies
by Mark Nunez, DVM
 |
| © Lee J Haywood via Flickr.com Itchy Itchy Allergies Dear Dr. Mark: Jack has suffered for allergies for his whole life. We know he is allergic to fleas, so we work very hard to keep that under control. When he comes into contact with fleas, he begins to get a rash at the base of his tail. However, he also has other allergies. We have found out through trial diets that it is not food he is allergic to, I'm assuming it's environmental. Usually it gets better over the winter; not this year. They've gotten a lot worse in general over the past 1-2 years before then we could control it without the use of corticosteroids. If we don't keep his itching in check, he gets a yeast infection in his groin and hot spots all over his front and back legs. |
Cynthia
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Hi Cynthia,
Allergies can be very frustrating for my patients and their owners. The first thing I tell my clients, when allergies is the diagnosis, is that allergies are 2 things, #1 expensive and #2 frustrating. There is no cure, only different ways of managing them. 100% flea control is a must. I've heard many times that "we've never had a flea problem." Unfortunately, that's not good enough. A topical, monthly flea preventative is a must. My favorite is K-9 Advantix because it also protects against biting flies and mosquitoes. Anything that can cause an itch will make an allergic dog, or person, worse regardless of whether they are allergic to it or not.
The 2 major categories of allergies are food and environmental (fleas included). The only way to diagnose a food allergy is with a food trial. There are may foods that can be used for this, but none of them are over-the-counter and all require a prescription. Sensitive skin diets that are over the counter only work for the mildest cases. My favorite diet for a food trial is Hill's Z/D Ultra. 99% of the time, the allergy is to a protein source. The protein in Z/D Ultra is broken down into such a small size that the immune system cannot recognize them, and therefore it cannot react to them. The other route to take would be to feed a novel protein diet that contains a protein source that your dog has never seen before, such as venison, duck, rabbit, or fish. It is very rare to have an allergy to a carbohydrate source. So all that talk out there about "grain free" food is mostly nonsense :-). There are skin and blood tests for foods, but they are not accurate and should be totally ignored.
Pollen allergies, or Atopy as it is known in my world, are extremely common and have an average age of onset of 2 years, with the range usually being from 6 months-3 years of age. The best way, in my opinion, to handle this is to have your dog tested and start immunotherapy (IT), or as it's better known, allergy shots. This addresses the underlying issue, rather than just treating the symptoms. There are two ways of testing, blood or skin testing. Skin testing is the gold standard, but is expensive and usually requires anesthesia. Blood testing methods have improved greatly over the past few years and produce much fewer false positives than they have in the past. The goal of IT is not to cure the allergies. Basically, IT simulates production of certain cells that will intercept the allergen before the bad cells that cause the allergic reaction have a chance to get their hands on it. The goal is to make the outbreaks fewer and less severe so that we do not need to use Prednisone as much. The Prednisone tablets only last for 12-24 hours, not one month. There is a long lasting steroid injection called Depomedrol that can last 2-4 weeks, but I generally do not use it because once you give it, it cannot be taken back.
Other options for controlling the symptoms of allergies include Atopica, anti-histamines, and shampoos. Atopica is an immunosupressive medication (Cyclosporin) that is similar to Pred, but does not have the side effects that Pred has. Antihistamines, such as Benadryl, Zyrtec, and Claritin tend to only work in mild cases and at high doses. Shampoos that contain Chlorhexedine, Ketoconazole, or Cortisone can help as well. Shampoos should be used in most cases to remove the allergens from the surface of the skin and to wash away dirt and inflammatory debris.
Fish oil is another must in patients with allergies. Welactin is the fish oil supplement that I recommend for dogs. The brand matters tremendously. Not all supplements are created equally and they are not regulated by the FDA. I know Welactin and I know it's bio-availability and it's the only one I trust.
Many times an multi-modal (using more than one of the above products) approach is much better than single agent therapy. Remember, we cannot cure allergies. We can only manage the symptoms.
Allergies can be very frustrating for my patients and their owners. The first thing I tell my clients, when allergies is the diagnosis, is that allergies are 2 things, #1 expensive and #2 frustrating. There is no cure, only different ways of managing them. 100% flea control is a must. I've heard many times that "we've never had a flea problem." Unfortunately, that's not good enough. A topical, monthly flea preventative is a must. My favorite is K-9 Advantix because it also protects against biting flies and mosquitoes. Anything that can cause an itch will make an allergic dog, or person, worse regardless of whether they are allergic to it or not.
The 2 major categories of allergies are food and environmental (fleas included). The only way to diagnose a food allergy is with a food trial. There are may foods that can be used for this, but none of them are over-the-counter and all require a prescription. Sensitive skin diets that are over the counter only work for the mildest cases. My favorite diet for a food trial is Hill's Z/D Ultra. 99% of the time, the allergy is to a protein source. The protein in Z/D Ultra is broken down into such a small size that the immune system cannot recognize them, and therefore it cannot react to them. The other route to take would be to feed a novel protein diet that contains a protein source that your dog has never seen before, such as venison, duck, rabbit, or fish. It is very rare to have an allergy to a carbohydrate source. So all that talk out there about "grain free" food is mostly nonsense :-). There are skin and blood tests for foods, but they are not accurate and should be totally ignored.
Pollen allergies, or Atopy as it is known in my world, are extremely common and have an average age of onset of 2 years, with the range usually being from 6 months-3 years of age. The best way, in my opinion, to handle this is to have your dog tested and start immunotherapy (IT), or as it's better known, allergy shots. This addresses the underlying issue, rather than just treating the symptoms. There are two ways of testing, blood or skin testing. Skin testing is the gold standard, but is expensive and usually requires anesthesia. Blood testing methods have improved greatly over the past few years and produce much fewer false positives than they have in the past. The goal of IT is not to cure the allergies. Basically, IT simulates production of certain cells that will intercept the allergen before the bad cells that cause the allergic reaction have a chance to get their hands on it. The goal is to make the outbreaks fewer and less severe so that we do not need to use Prednisone as much. The Prednisone tablets only last for 12-24 hours, not one month. There is a long lasting steroid injection called Depomedrol that can last 2-4 weeks, but I generally do not use it because once you give it, it cannot be taken back.
Other options for controlling the symptoms of allergies include Atopica, anti-histamines, and shampoos. Atopica is an immunosupressive medication (Cyclosporin) that is similar to Pred, but does not have the side effects that Pred has. Antihistamines, such as Benadryl, Zyrtec, and Claritin tend to only work in mild cases and at high doses. Shampoos that contain Chlorhexedine, Ketoconazole, or Cortisone can help as well. Shampoos should be used in most cases to remove the allergens from the surface of the skin and to wash away dirt and inflammatory debris.
Fish oil is another must in patients with allergies. Welactin is the fish oil supplement that I recommend for dogs. The brand matters tremendously. Not all supplements are created equally and they are not regulated by the FDA. I know Welactin and I know it's bio-availability and it's the only one I trust.
Many times an multi-modal (using more than one of the above products) approach is much better than single agent therapy. Remember, we cannot cure allergies. We can only manage the symptoms.
Dr. Mark
 |
| © courtesy m.n. Dr. Nunez |
Want to read more from Dr. Mark? Try these, or visit his archives:
Dogs Who Eat Bugs
- Ask The Vet: More On Pet Allergies
by Mark Nunez, DVM Daniel Y. Go via Flickr.comDear Dr. Mark,I've read that long-term use of prednisone can cause Addison's disease, Cushing's disease, and a dependence on the drug to the point where his body will not be able to produce...
- Itchy Dogs
By the Drs4pets Team Dogs scratch. Some dogs scratch a lot. Why do dogs scratch, and when should you intervene? Let’s first talk about why dogs do not scratch. One myth is that dogs begin to itch when something changes in their diet. This is rarely...
- Summertime, Fleas And Seasonal Allergies: Be Prepared
Spring is turning into summer, and nipping at its heels are the nasty fleas and seasonal allergies that warm weather can bring. While feeding an all natural, holistic dog food like CANIDAE helps maintain the health of our pets from the inside, it is important...
- Help Your Dog Cope From Allergies
People are not the only ones who experience allergies. Even dogs can have allergies too. Just like humans, dogs can become allergic to different things such as food, dust mites, pollen, fleas, ticks and bacteria. A dog can also get contact allergies from...
- Dog Allergy Treatment
First of all, this information is not intended to replace the advice of a professional veterinarian, dog trainer or pet care professional. Dog allergies, like human allergies, can come in many different forms. These dog allergies can be caused by many...