11 Jun, 2020
Allergies in pets often present as itchiness; the constant trauma of scratching and biting at themselves can cause secondary problems such as “hot spots”. They can also develop yeast and/or bacterial infections on the feet, then skin and in the ears. Additionally, pets can develop secondary anal gland impactions, sacculitis or anal gland abscesses because of the association with anal glands and the skin. The three main areas of focus in diagnosing and treating allergies are fleas, diet, and environmental allergens (pollens, grasses, molds, etc.) Fleas: Fleas are fairly easy to treat with topical or systemic flea prevention, most often administered monthly. Monthly application of topical flea products such as Frontline, Advantage or Vectra are helpful. Be aware of imitators on the market which often contain the same generic ingredient such s “fipronil” but are not effective and in may cases, can be toxic. Products to avoid are Hartz Top Spot, Aet Armor, Biospot, etc. When using a topical flea preventative always make sure there are at least 2 days between bathing and application time. Oral flea preventatives like Nexgard and Bravecto are out performing topical products in clinical trials. One of the hallmark signs of flea allergies is itching around the tail and hind end. Fleas are everywhere due to cat “flea taxis” both feral and domestic, rodents and wild life. In some cases where flea allergies are especially bad, clients can rotate between applying a topical product and administering an oral product every 2 weeks for increased flea control. Diet: Food allergies will often manifest as itchiness around the face, eyes, ears and anus, but can be whole body itching as well. It is more difficult to rule out food allergies, especially if there are children in the home dropping food, as well as the entire food trial for TWO MONTHS! When trying a food trial, pick a food that has a novel (never been fed before) protein and carbohydrate such as salmon & sweet potato or rabbit & pea. Avoid chicken, beef, corn, wheat and soy. Feed ONLY this novel diet for at least 2 months, DO NOT FEED TREATS that are not of the same protein & carbohydrate source! It will take 2 months before you see any result from a foot trial. If the novel protein is not effective, we may have a try a prescription hydrolyzed protein diet and treats. Environmental allergens: Finally, the third type of allergy is environmental, anything airborne or what the pet may come in contact with. Grass allergies will show up as itchiness on the feet, toes, between the toes and paw pads or the bottom the feet and can lead to severe infections of the skin, both bacterial and yeast. It is difficult to control airborne allergens so you can try to treat the physical sings. Always check in with your veterinarian to make sure there are not secondary infections. If there are, your pet will need to be treated first with topical cleansers and anti-yeast or ant-bacterial medications. Severe itching may require treatment with a steroid initially to reduce inflammation. One the inflammation is under control you may try giving Benedryl (diphenhydramine) dosed at 1mg/pound of boy weight ever 6-12 hours, or you may also try Claratin or Zyrtec every 12-24 hours if stronger anti-itch protection is needed. Consider prescription medications such as Cytopoint injections or Apoquel Tablets. A last resort effort of immune modulators such as Atopica (cyclosporine) or referral to a dermatologist for dermal allergy testing and desensitizing injections. We live in the highest allergen zone in the entire United States, even if you pet did not initially have allergies or you moved here from another location, allergies will get worse over time and increased exposure to antigens. The key is to try to catch the itching early and control it before it becomes a hot spot, bacterial infection, yeast infection, ear infection, or anal gland problem. Always feel free to contact you pet healthcare team at Folsom Veterinary Hospital at 916-985-4700 if you have any questions.