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When Is It More Than Just an Itch? Understanding Allergies in Dogs and Cats

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Here comes your adoring pet, they jump in your lap and WHAM! Why does he smell like dirty Fritos all of the sudden? If your pet seems to scratch nonstop and constantly licks their paws after spending time outdoors, allergies may be to blame! While many people experience allergies such as sneezing and watery eyes, our pets often show allergy symptoms in very different ways. Most dogs and many cats experience allergies through their skin rather than their sinuses.

Allergies are one of the most common reasons pets visit the veterinarian. Although they can develop at any age, many pets first begin showing signs between two and four years old. Recognizing the symptoms early and seeking veterinary care can help keep your pet comfortable and prevent secondary infections that often develop when itching becomes severe.

An allergy occurs when the immune system overreacts to something that is normally harmless. FLEAS, FLEAS, FLEAS are terrible this year! Many clients refuse to believe that they could have fleas around the house. If your pet is very itchy and isn’t taking flea and tick prevention, purchase prevention from your veterinarian ASAP. Over the counter flea and tick options are typically not strong enough to be effective.

Other allergens may include pollen, grasses, weeds, mold spores, dust mites, or certain ingredients in food. While every pet is different, genetics also play an important role. One of the biggest misconceptions about pet allergies is that they look just like allergies in people. While dogs and cats can occasionally sneeze or have watery eyes, these are usually not the most obvious signs. Instead, pets often become intensely itchy.

A dog with allergies may constantly rub at its ears, face, belly, or sides. Many chew or lick their paws until  they become reddened, stained, or hairless entirely. Others rub their faces across furniture or carpet in an attempt to relieve the irritation. Cats may groom themselves excessively, resulting in thinning hair or bald patches, especially on the belly, legs, and back.

Chronic ear infections are another common clue. If your dog repeatedly develops red, inflamed ears with excessive wax or odor, allergies may be the underlying cause rather than the ear infection itself. Similarly, recurring skin infections caused by bacteria or yeast often develop because constant scratching damages the skin’s protective barrier.

Environmental allergies are commonly triggered by pollen from trees, grasses, and weeds. Pets may only show symptoms during certain months of the year when these plants are actively releasing pollen. In many parts of the country, allergy season can begin in early spring and continue well into the fall. Here in East Texas, lots of pets experience allergy symptoms all year.

Environmental allergens are not limited to the outdoors. Dust mites, mold spores, and household dust can also trigger allergic reactions inside the home. Some pets experience symptoms year-round because these allergens are present regardless of the season.

Flea allergy dermatitis deserves special attention because it is one of the most common allergies seen in veterinary medicine. Even a single flea bite can cause intense itching in sensitive animals. Pets often chew at the base of the tail, neck, and lower back. A couple fleas are enough to trigger a reaction, as owners you may never actually see fleas on your pet. Consistent flea prevention remains one of the simplest and most effective ways to reduce severe allergies caused by these micro pests.

Treatment depends on the cause and severity of your pet’s allergies. The primary goal is to reduce irritation and remove the source of irritation, underlying infections, or contributing factors. Your pet may benefit from prescription medications that target the immune response responsible for itching. Others may require medicated shampoos, ear medications, antibiotics, or antifungal treatments if infections are present.

The best at home option is bathing in a medicated shampoo. Bathing can be surprisingly helpful for pets with environmental allergies. Regular bathing removes pollen and other allergens from the skin and coat while also soothing inflamed skin. Wiping your pet’s paws and coat after outdoor walks may also reduce the amount of pollen brought into the home.

There is no permanent cure for most allergies, but they can usually be managed successfully with the right treatment plan. Your pet deserves to be comfortable during the Summer months! I recommend a veterinary checkup, year-round flea prevention, prompt treatment of ear and skin infections, and close monitoring of allergy symptoms.

If your dog or cat has been scratching more than usual, licking their paws, or developing frequent ear infections, don’t assume it is simply a normal part of the season. Allergies rarely improve on their own and often worsen if left untreated. Working closely with your veterinarian can help identify the underlying cause and develop a personalized treatment plan that allows your pet to enjoy every season with far less discomfort.

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