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Cat Allergy Signs, Symptoms, Reaction & Treatment

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When a cat's body gets sensitive to its environment, it develops allergies. So, if you notice that your cat is feeling unwell and is constantly sneezing or scratching itself, it could be due to cat allergy reactions. These allergens are unpleasant substances that may or may not irritate you, but when your cat's body tries to rid itself of them, it may exhibit a variety of symptoms. 

While it’s normal for cats to show different symptoms depending on the allergy, those that affect their breathing are the most serious ones. So, if your cat suffers from breathing issues due to allergies, it can take a life-threatening turn. Sometimes, the itchiness can also cause skin irritation leading your cat to chew on its paws or tail relentlessly. 

Fortunately, cat allergy is treatable once the allergen affecting your cat is identified. Therefore, knowing how to detect if your cat has allergies and what’s causing these allergies can help you prevent problems in the future.

 

What Causes Cat Allergies?

The first step toward treating your cat’s allergies is finding out what’s causing them. A visit to the veterinarian is the simplest way to identify your cat’s allergy stimulus. 

Causes of cat allergies could be due to several reasons, all of which fall under one of the three categories. These categories are, namely – flea allergy, food allergy, and environmental allergy (atopic dermatitis).
 

  • Flea allergy

One of the most common cat allergy signs is flea allergies. These allergies are generally caused by flea bites or flea treatment medicine. Excessive itching is the most predominant symptom of this type of allergy. It's likely that your cat is allergic to fleas if you find it scratching or frequently chewing on its fur, especially directly above the tail.

  • Food allergy

Food allergies in cats can cause vomiting, diarrhea, and even itchy skin, especially around the neck and head. This type of allergic response might cause your cat to shed patches of fur in severe circumstances. In such extreme cases, your vet can help you detect which foods are causing irritation and develop an appropriate diet for your cat.

  • Environmental allergy 

Environmental allergies may have different triggers, including plants, pollen, and mold. This type of allergy can also be induced by cleaning products, or the fragrance included in some types of cat litter. Another type of environmental allergy is feline atopy. It is commonly known as feline atopic dermatitis, a severe allergic reaction in cats that causes extreme itchiness in their skin. As a result of this condition, your cat may suffer from skin soreness, redness, scabbing, and even hair loss.

 

Symptoms Of Cat Allergies

Depending on the kind of allergy your cat has, symptoms can range from unpleasant to life-threatening. 
 

  • Diarrhea

Diarrhea is frequently related to staining of the fur around the hind end in some breeds. In normal cats, you can observe some variation in the consistency of their stool. Dietary changes can also cause temporary changes in their stool. But, if you notice frequent semi-liquid or liquid stools for more than two days, you should consult your vet. 
 

  • Wheezing

There are different causes to why a cat makes a wheezing sound. It could be due to a hairball stuck in its stomach or allergens like pollens, mold, or cigarette smoke. However, this wheezing sound can also be linked to discomfit or stress. Because each cat's triggers are unique, it's critical to be aware of the surroundings and activities in your cat's environment that could be causing stress-related wheezing.
 

Wheezing
 

  • Watery eyes

Watery or glossy-looking eyes are other prominent cat allergy signs. While a cat's moist eyes maybe caused by allergens such as mildew dust or household cleaning products, it could also indicate something more serious, such as a bacterial illness or virus. 
 

Watery eyes
 

  • Skin redness and itchiness

Itchiness or skin redness in cats is associated with a skin condition called cat dermatitis. When this happens, your cat’s skin becomes swollen, red, and irritated, often with small blisters, as a result of an external agent directly irritating the skin or causing an allergic reaction to it.

Skin redness and itchiness
 

How Are Cat Allergies Treated?
 

  • By using medicated shampoos

If your cat is suffering from moderate allergy symptoms with only limited itching, medicated shampoos or rinses can help.

  • By using anti-itch medications

Anti-itch and anti-inflammatory medicines such as corticosteroids are particularly effective in treating extreme itchiness in cats. When used correctly, they can be quite safe and effective in cats. Consult your vet to identify the best course of action.

  • By using flea preventatives

Treating your cat with flea preventatives will prevent your cat from being bitten by fleas. Plus, to lessen the chances of your cat being bitten, you should treat your home during the warmer months when fleas are more frequent. In fact, even cats who aren't allergic to fleas should use a flea preventative to avoid tapeworm and other flea-related illnesses.

  • By eliminating food that causes allergy

To figure out which food is causing your cat's allergies, you must first put it on an elimination diet. After that, gradually reintroduce food items until you find the problematic allergen. The top three allergenic protein sources are beef (18%), fish (17%), and chicken (5%). Avoiding these foods will enable your cat's allergic reaction to be less severe.

 

Signs Of Allergies In Cats

The most common allergy symptoms in cats are skin reactions, regardless of the cause, and they can appear at any age. Just because your cat didn’t have allergies as a kitten doesn’t mean she won’t have them as an adult. If your cat suffers from any of the following symptoms, take her to the vet for a consultation:

  • Persistent scratching, licking and skin chewing
  • Face and ear rubbing
  • Inflamed skin patches, hair loss and foul odor
  • Coughing, sneezing, watery eyes and runny nose
  • Frequent vomiting or diarrhea

Allergies can vary from cat to cat, so it is important that you work with your vet to make sure your cat gets the best possible treatment. You’ll both be happier as a result.

 

Does Your Cat Have Allergies?
Does Your Cat Have Allergies?

FAQ On Does Your Cat Have Allergies

  1. What Are The Most Common Cat Allergies?
  2. Cats are sensitive to a wide range of allergies. Cats, like people, can be allergic to a variety of foods, drugs, plants, and other things. However, flea, environmental, and/or food allergies are the most common allergies in cats.

     

  3. How Do You Get Rid Of Cat Allergies?
  4. Keeping your home clean, using dust-free and unscented cat litter, using flea preventatives regularly, avoiding excessive fragrances, and not smoking in the house can help keep your cat from being allergic.

  5. How Do I Know If My Cat Has Allergies?
  6. If your cat suffers from allergies, some of the most frequent allergic reactions will trigger certain behaviors, conditions, and even symptoms like:

    • Itchy and watery eyes
    • Runny nose
    • Itchy skin
    • Coughing
    • Vomiting or diarrhea

  7. Do Cat Allergies Go Away?
  8. It depends on whether your cat has skin or food allergies. If your cat eats nothing but novel food and water for eight to ten weeks, the allergic symptoms in its skin will fade away. But if it is related to food allergies, then you need to find a diet that works for your cat and stick to it.

  9. How Long Do Cat Allergies Last?
  10. Most cats with inhalant allergies are allergic to a variety of allergens. Itching may only persist just several weeks at a time during one or two seasons of the year if the number of allergens is low and seasonal. The cat may scratch frequently if there are a lot of allergens or if they are there all year round.

  • Feeding Guidelines for Your Cat
    Feeding Guidelines for Your Cat
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    Cat Feeding Guidelines

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    Ensuring proper nutrition is crucial for the health and well-being of your feline companions. On average, cats require a balanced diet that includes proteins, fats, carbohydrates, vitamins, and minerals. The quantity of food depends on various factors such as age, weight, activity level, and health status.


    Creating a cat feeding guide involves determining the right portion size and choosing high-quality cat food. Be cautious not to overfeed, as obesity can lead to health issues. Consult your veterinarian to establish an appropriate cat feeding routine and to address any specific dietary needs your cat may have.


    Feeding guidelines for your cat

    How can you make sure you are cat feeding the right food at the right time and in the right quantities? If you are choosing new cat food, deciding on a feeding schedule, concerned about a food-related health condition, or wondering about supplements or treats, check out our cat feeding guidelines.


    Cats are carnivores, and this means that they cannot survive solely on a plant-based diet as they won’t get all the required nutrients from it. To stay healthy and survive, cats require at least 70% of the nutrients found in animal meat. So, your cat’s diet and choice of food should be prepared accordingly. To start, you can begin by making a cat feeding plan to ensure that they get the nutrition they require.


    How do I make a cat feeding plan?

    You can divide your cat’s daily diet into two main meals which are spaced no more than 12 hours apart. Alternatively, you can divide the food into multiple meals such as breakfast, lunch, and dinner. However, do ensure that these meals provide the cat with enough calories and other nutrients - not more or less than recommended.


    How to identify my cat’s feeding habits?

    Once your cats are set on a regular feeding schedule, you will slowly begin noticing their usual cat feeding habits. Habits such as playing with their food, eating alone, and hoarding food are quite normal for cats. So, if you notice any of these, you don’t have to be worried. A few habits that you may have to be mindful of are:
     

    1. Not eating all the served food (served as per regular amount)

    2. Sudden gain in weight

    3. Cat going more than 24 hours without eating


    If you notice your cat showing either of these habits, book an appointment with your vet as soon as possible.


    Factors that affect how much to feed your cat

    Determining the appropriate amount of food for your cat involves considering various factors to meet their unique nutritional requirements.


    Age

    A cat's diet evolves throughout its life stages. Kittens, in their early months, undergo rapid growth and development, necessitating a diet rich in calories, proteins, and essential nutrients. Senior cats, however, may experience changes in metabolism and activity levels. Therefore, a diet tailored to maintain their weight and support ageing joints becomes essential. Adjusting portion sizes according to these distinct life stages is crucial for promoting optimal health and longevity throughout a cat's life.


    Size

    The size of a cat is a fundamental determinant of its calorie requirements. Larger cats, with more extensive body mass, generally need more food to sustain their energy levels, fuelling their larger bodies. Conversely, smaller cat breeds may require more controlled portion sizes to prevent overfeeding and mitigate the risk of associated health issues, such as obesity. Tailoring your cat’s diet to its size ensures that their unique metabolic needs are adequately met, promoting a balanced and healthy lifestyle.


    Activity level

    More active cats, such as those who engage in regular play, exercise, or outdoor activities, burn more energy and may require additional calories to support their dynamic lifestyle. On the other hand, sedentary indoor cats may need a carefully measured diet to prevent weight gain and associated health concerns, emphasising the importance of adjusting food intake based on the cat's activity level. Ensuring the cat receives the appropriate number of calories supports overall health and prevents issues related to weight management.


    Indoor or outdoor

    The living environment — whether a cat resides indoors or outdoors — directly impacts its energy expenditures. Outdoor cats often engage in more physical activities, such as exploring and hunting, requiring a higher calorie intake to fuel their adventures. Indoor cats, with a more sedentary lifestyle, may need portion control to avoid excess weight gain and the potential health issues associated with obesity. Recognizing the environmental differences between indoor and outdoor living helps tailor the cat's diet to their specific needs, promoting a balance that aligns with their lifestyle.


    Body condition

    Body condition concerns the animal’s overall health and body weight. For a cat who is overweight, you need to prepare a diet that is low on calories. With regards to the overall health condition, if your cat is facing any kind of ailments, their food intake may change or need to be changed. Your vet will advise you on what foods your pet may need to consume or avoid. They may also suggest changes in the cat’s feeding guidelines per the animal’s unique health requirements.


    Health status

    Cats with specific health conditions may require special dietary considerations. For instance, cats with diabetes may need a carefully regulated diet to manage blood sugar levels, while those with kidney disease might benefit from a diet that supports renal function. Cats with allergies may require hypoallergenic diets to prevent adverse reactions. Consulting with a veterinarian ensures that a cat's nutritional needs are met while effectively managing any existing health conditions. Regular communication with a vet helps adapt the cat's diet to evolving health requirements, promoting overall well-being, and addressing specific health concerns with precision.


    How often should I feed my cat?

    It is important to consider your cat’s age when deciding how many times a day to feed it. Below is a comprehensive cat feeding guide by age to ensure that your feline friend receives the appropriate nutrition at every stage of life. 

    Age

    Schedule

    1 week

    Every 2 hours

    1 to 2 weeks

    Every 2 to 3 hours

    2 to 3 weeks

    Every 3 to 4 hours

    3 to 4 weeks

    Every 4 to 5 hours

    4 to 5 weeks

    Every 5 to 6 hours

    5 to 8 weeks

    Every 6 hours

    8 to 16 weeks

    Every 6 to 8 hours

    4 to 5 months

    Every 8 hours

    6 months to adulthood

    Every 8 to 12 hours


    How much should I give my cat to eat?

    The amount to feed your cat depends on your pet’s age, size, and activity level. It is important to make a proper cat feeding guide or follow feeding guidelines, which list the daily-recommended portion, are included on all IAMS™ packages. Start feeding with this amount and adjust according to your pet’s needs. Remember to divide the portion accordingly if you feed more than once a day.


    What is the best way to introduce a new diet to my cat?

    When changing your cat’s diet, it’s important to introduce the new food slowly. Start by offering your cat’s daily portion in a ratio of 25% new food to 75% old food. During the next three days, gradually increase the amount of new food and decrease the amount of old.


    Cat feeding guide for wet and dry food

    Once you have understood your own cats’ feeding guide based on age and other factors, it is important to figure out what kind of food to pick — wet or dry. Both these types of foods have their unique benefits, and each one can prove necessary for different stages of a cat’s life to fulfil nutritional requirements. Since each of these types of food finds its place in a cat’s feeding guidelines, let’s take a closer look.


    Identifying the better option: wet or dry food for cats

    Making the right choice between wet and dry cat food involves considering various factors. Let us delve deeper into the benefits of each to help you make an informed decision tailored to your feline companion's needs.


    Benefits of dry cat food:

    1. Dry cat food is incredibly convenient for pet parents. It is easy to store, has a longer shelf life, and doesn't require refrigeration once opened.
    2. The crunchiness of dry kibble can contribute to better dental health. Chewing on the hard texture helps reduce plaque and tartar buildup, promoting healthy teeth and gums.

    3. Dry cat food is generally more budget-friendly than wet food. It offers an affordable solution for cat parents.

    4. Dry food tends to have a higher caloric density, meaning that smaller portions can provide the necessary energy for your cat. This can be beneficial for weight management.


    Benefits of wet cat food

    1. Wet cat food contains a significant amount of water, addressing the hydration needs of cats. This is particularly beneficial for cats who may not drink enough water on their own.

    2. The soft texture and varied flavours of wet food make it highly palatable. This can be advantageous for picky eaters, enticing them to consume essential nutrients.

    3. Wet cat food often offers a variety of proteins and nutrients. This diversity supports a well-rounded and balanced diet, contributing to your cat's overall health.

    4. Wet food can be easier to administer for cats with specific health issues or those requiring special diets. It allows for the incorporation of medication or supplements, making it a practical choice for certain medical conditions.


    The ideal choice depends on your cat's individual preferences, health requirements, and lifestyle. Some cat parents opt for a combination of both wet and dry food to provide a balanced and satisfying diet for their furry companions. Always consult with your veterinarian to tailor the diet to your cat's unique needs.


    Is it necessary to feed both wet and dry food?

    Although our wet cat foods are nutritionally complete and balanced for a cat’s diet, it is not necessary to offer wet food at every feeding. Our dry foods are formulated with high-quality protein sources such as chicken, lamb or fish and contain all the essential nutrients pets need.


    You can also consult your vet regarding your cat’s feeding guidelines, and they will make changes if necessary. Also, it is best to consult your vet before making any major changes in your cat’s meals, like adding or switching to a raw food diet for cats. Your vet may conduct a nutritional evaluation of your cat to determine if you can switch to a raw diet for cats or specify which food they require for a healthy living.


    Will my cat be bored eating the same food all the time?

    No. Boredom with food is a human trait. Cats are creatures of habit and usually are content with just one food. Cats generally eat to meet their energy or nutritional needs. They have very short digestive systems, and if their diet is abruptly or constantly changed, digestive disturbances can occur. Also, constant changes can make your pet a finicky eater.


    Is it ok to moisten dry food?

    Adding water will not change the nutritional value of dry cat food. However, once moisture is added the food should be eaten relatively soon, and any uneaten portion should be discarded to avoid spoilage. Feeding your cat dry food is usually encouraged because of the benefit to your cat’s dental health.


    Will it hurt cats or dogs if they eat each other’s food?

    Cats and dogs have different nutritional requirements and should not eat each other’s food. For example, cats require a much higher level of taurine in their diet. An occasional venture into each other’s bowls will not be harmful but is not recommended on a regular basis.


    Can I supplement pet foods with vitamins, minerals, oils, etc.?

    Our foods are nutritionally complete and balanced. Adding vitamins, minerals or oils can offset the balance the food provides. One of the benefits of feeding a high-quality product is that it has been carefully balanced in proper ratios to provide optimal nutrition, so nothing needs to be added.


    How can I learn more about pet nutrition?

    Contact the IAMS Pet Care and Nutrition Specialists toll-free at 1-800-675-3849.

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