Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Seasonal Allergies in Dogs: Signs, Causes, Care & FAQ (Vet Answer)

female veterinarian and a white dog in the clinic

Ahhh, spring! Flowers and trees are blooming, grass is growing, bees are buzzing, and allergies are in full force for many people, and in some cases, even their dogs! Yes, it’s true; man’s best friend can have allergies that can vary from season to season just like their human counterparts.

But how do allergies present in dogs, what is the cause, and how can you care for your beloved canine companion if this is the case? We’ll discuss all these things and more as we explore seasonal allergies in dogs below.

divider single dog paw oct 2024

What Are Seasonal Allergies?

Before we talk about seasonal allergies specifically, let’s address what allergies in general look like for our canine friends. An allergy is when the body overreacts to specific substances, called allergens, that are foreign to the body. This allergen, which is a protein, can be inhaled, ingested, or absorbed into the skin, which then releases histamine, brings about a chain reaction, and leads to an allergic response attack that can result in itching and inflammation.

There are three primary groupings of allergies in dogs: food, flea, and environmental. In dogs, environmental allergies are referred to by the veterinary medical world as atopic dermatitis or atopy. These environmental allergies include indoor and outdoor substances in the world around them, such as grass, weed, or tree pollen as well as dust mites, dander, mold, etc.

Seasonal allergies include a subset of environmental allergies and in some cases, flea allergies, that change and cycle from time to time, most often associated with a certain period of the year. The individual seasons (spring, summer, and fall are the most common) can have particular activities that accompany that period of time. However, it’s also important to keep in mind that depending on the climate, such as with tropical ones, “seasonal” may be a more relative term as plants, their pollen, and fleas may be present for much of the year.

Traditionally, in dogs, some types of seasonal allergies could include pollen from plants (such as grass, weeds, or trees), as well as flea allergies (termed flea allergy dermatitis).

dog in vet clinic
Image Credit: Pickadook, Shutterstock

What Are the Signs of Seasonal Allergies?

While many people with seasonal allergies may present with itchy eyes and sneezing, dogs actually most commonly present with changes to the skin. In addition, they can vary from dog to dog, but common signs that can be associated with allergies include:

  • Itchy skin (pruritus) is the number one sign for those affected, which may result in the affected dog licking, chewing, rubbing, or scratching.
  • Rhinitis (nasal swelling that often consists of nasal congestion, eye or nose discharge, and sneezing) and asthma can occur in a smaller number of dogs.
  • If fleas are at play, black specks of flea fecal material called “flea dirt” may be present.

Signs often secondary to self-trauma from itching:

    • Pimple-like bumps
    • Inflammation of the skin
    • Hair loss
    • Redness
    • Scaling skin
    • Salivary staining from repetitive licking
    • Crusts, excoriations
    • Skin discoloration
    • Superficial bacterial and/or yeast infections
    • Ear infections (in some animals, this may be the only observable problem)

dog with skin allergy

Where do these signs most commonly occur?

  • Feet
  • Face
  • Ears
  • Top surface of the legs
  • Abdomen (underside of belly)

What Are the Causes of Seasonal Allergies?

As mentioned, plant pollen (a small, powdered substance from plants that is released into the environment to allow for plant reproduction) and fleas (a type of small wingless insect that feeds on animal blood) are common causes of seasonal allergies. These allergens cause a hypersensitive reaction and may be inhaled or absorbed on the skin from the environment.

There are many factors to be considered when evaluating seasonal allergies in your dog. In some, it’s thought to have a genetic component that can be inherited, and it can vary from area to area based on dog geographic gene pools. In addition, while any dog may develop seasonal allergies, certain breeds are more predisposed, which can include Golden and Labrador Retrievers, Boxers, Shih Tzu, Lhasa Apso, Boston Terriers, and Dalmatians to name a few.

Keep in mind that the other piece to the seasonal allergy puzzle is local environmental factors. For example, not only must a dog be predisposed or have genetic contributions regarding seasonal allergies, but they also need to live in an area where that specific allergen is present!

For example, if a dog is allergic to a specific tree pollen but does not live in a place where that tree is present, they won’t have that specific allergy problem.

A vet will be able to advise you on the best course of action to ensure the well-being of your pet.

Did you know you can talk to a vet online? Click on the image or button below to schedule a call: PangoVet_Mention-in-Content Savings V1


How Do I Care for a Dog with Seasonal Allergies?

At the veterinary clinic

For seasonal allergies, a thorough history of the affected dog will be very important, including when signs were first noted and where, if they began being present only at certain times of the year, etc. A physical exam will then provide your doctor with important clues about what the next steps are. They may find it important to rule out other causes such as food allergy or various types of external parasites such as mites.

In addition, they will check and identify any potential (and in many cases, probable) secondary bacterial and/or fungal infections. In some cases, at a certain point, there may be a referral to a veterinary dermatologist, especially if allergy/intradermal testing to determine a specific allergy and its subsequent treatment is a possibility.

Because a diagnosis of allergies can include ruling out many other causes, it’s best to be prepared that it can take more than one visit to officially diagnose.

Treatment

The specific cause of seasonal allergies will dictate the recommended course of treatment. In addition, medications to target and stop the scratch-itch cycle as well as treat any associated signs may include:

  • Prescription-based flea prevention and subsequent environmental clean-up for suspected or confirmed dogs with fleas.
  • Medications that can stop/control the scratch-itch cycle.
  • Antibiotics or antifungals for any subsequent secondary infections.
  • Topical therapy is available in various forms including medicated sprays, wipes, shampoos, etc.
  • An Elizabethan collar (e-collar) may be needed to help a dog not continue to chew or lick an affected area while healing.
  • Allergen Immunotherapy to identify specific allergens and attempt to increase the affected dog’s tolerance to a specific allergy.

With seasonal allergies, it’s important to keep in mind that some affected dogs may need polypharmacy; this means that they may need multiple medications to help combat their medical problem. In addition, while some medications, such as antihistamines or topical shampoos, may be available over the counter, it’s recommended to always consult with your veterinarian before giving or using a product for your dog’s health due to safety reasons.

bernese lying down indoors
Image Credit: Ksenia, Raykova, Shutterstock

divider single dog paw oct 2024

Frequently Asked Questions (FAQ)

When will I see the start of allergies in a dog?

For those dogs that will have this condition, most commonly it will first present between 6 months and 3 years of age. In addition, at the start, signs may be mild and then get worse over time.

What can I do at home to help my dog?

While you will be unlikely to only use at-home care to resolve the issue, there are some steps that can be done in conjunction with medical care. Things that you can do to help your dog include:

  • If a specific allergen(s) is identified, avoidance or reduced exposure to it would prove to be helpful, when possible.
  • Wash bedding routinely to help remove any pollen or other particles present.
  • A HEPA filter can mechanically remove harmful particles, such as pollen, in your home.
  • Fish oil supplementation. Among its other benefits, it may help with skin health. Because this is a supplement, discuss specifics with your dog’s veterinarian.
  • Wiping down or washing a dog’s feet and abdomen after being outside or during peak allergy times.
  • Routine coat bathing and ear cleaning hygiene.

Our favorite grooming products come from Hepper's product line, offering natural, pet-friendly solutions meticulously designed to gently cleanse your dog's skin and coat without any risk of irritating or drying them out. We love their Shampoo Products, both of which free of things like dyes, soaps, sulfates, and phthalates. Your pet will enjoy the soothing aloe vera and oatmeal, and you'll love the clean, fresh scents! Hepper's Wash Wipes is our recommendation for cleaning up on-the-go. These premium pet-friendly wipes are thick and durable enough for the toughest of messes, while still being soft enough to use on your dog's coat, ears or eyes with hypoallergenic ingredients. 

Image Product Details
For Bathing Hepper Oatmeal Pet Shampoo Hepper Oatmeal Pet Shampoo
  • Safe for Dogs & Cats
  • Soothing Oatmeal
  • Lightly Scented
  • For In-Between Baths Hepper No-Rinse Pet Shampoo Hepper No-Rinse Pet Shampoo
  • Waterless cleaning
  • Natural ingredients & pH balanced
  • Fresh scent
  • For On-The-Go Hepper Wash Wipes Hepper Wash Wipes
  • On-the-go cleaning
  • Sensitive Areas
  • Gentle & effective
  • At Dogster, we've admired Hepper for many years, and decided to take a controlling ownership interest so that we could benefit from the outstanding designs of this cool pet company!

    What’s the overall prognosis?

    While this medical condition cannot be totally cured, with ongoing management and a treatment plan that works well to resolve the pet’s discomfort, the prognosis can range from good to great. It may also be encouraging to know that, depending on the severity, while this can be a very uncomfortable medical condition, it is not typically life-threatening.

    divider dog paws 3 oct 2024

    In Conclusion

    Seasonal allergies that are present in some dogs can include those that are caused by environmental allergens at specific times of the year such as with plant pollens or even fleas.

    Because this is such an uncomfortable health condition to have, noticing the signs as early as possible and taking action will allow you to get your dog the medical care that they need to help provide healing and relief for a good quality of life.


    Featured Image Credit: Viktor Gladkov, Shutterstock

    Want content like this delivered to you?

    Sign Up For Our Newsletter

    News, insights, expert advice, and everything dog

    * By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

    How useful was this post?

    Click on a star to rate (you can leave written feedback after clicking submit)

    Help us improve Dogster for pet parents!

    Your feedback really matters.

    What did you like about this post? Also how can we improve it?

    Join the conversation

    Leave a Reply

    You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

    Talk With A Vet Online

    Peace of mind,
    anywhere, anytime

    Affordable vet advice

    Silky Wire-Haired Dachshund: Info, Pictures, Origin & History

    Like all breeds of Dachshund, the Silky Wire-Haired Dachshund has short legs and a long back, but this is a very rare breed...

    Are Beagles Smart? Facts & Training Tips

    The beagle dog breed originated in England around 1830, and since then it has become one of the most popular dog breeds in...

    Is Dog Pee Good for Grass? Important Facts & Tips

    Are you tired of finding dead spots all over your lawn? Or is someone trying to convince you that dog pee might even...

    18 Papillon Mixes: Info, History & Pictures

    Toy breeds are most loved for their spunky personalities, cuddliness, and happy-go-lucky demeanor. The Papillon has been a favorite for centuries, from the...

    More related

    Can Dogs Eat Agave? Vet-Reviewed Facts & FAQ

    Agave nectar (or agave syrup) is a sweeter-than-sugar sweetener derived from the agave plant. Since honey is sometimes recommended for dogs, you might...

    Best Canned Pumpkin for Dogs: Our Top 6 Picks in 2025

    Pumpkin isn’t just an autumn treat anymore—especially when it comes to your dog. Canned pumpkin is a popular treat and dog food topper,...

    20 Canada Pet Food Industry Statistics to Know in 2025: Trends, Market Size & FAQ

    Note: This article’s statistics come from third-party sources and do not represent the opinions of this website. The pet food industry in Canada...

    10 Benefits of Running With Your Dog & Tips to Get Going

    If you’re thinking of starting a running routine, whether for health reasons or just for fun, why not let your pup join in?...

    Keep reading

    Thanksgiving Food for Dogs: Safe Options & What to Avoid (Vet Verified)

    Thanksgiving is an important holiday for many families and friends in various countries. Since we count our dogs as members of our families, it’s only natural that we want to include them on this special day. For most families, Thanksgiving...

    family-with-dog-celebrating-thanksgiving

    10 Best Senior Dog Foods for Sensitive Stomachs in 2025 [Vet Approved Reviews]

    If you are in search of the right food for your senior pal that suffers from a sensitive stomach, it can be challenging to narrow down the choices. Foods that are geared toward dogs with sensitive stomachs aren’t always a...

    senior dog eating canned food on a saucer

    Why Does My Dog Eat Tissues? 3 Vet Approved Reasons

    Every time you turn, your dog is into something different. Maybe last week, they were ripping up the trim on your baseboards, and this week, they’re nose-deep into your Kleenex box. If your dog has recently taken a shine to...

    Golden retriever playing with tissue on couch

    Can Dogs Eat Blueberry Muffins? Vet-Verified Nutrition Facts & Alternatives

    Dogs can enjoy many foods that humans eat, and they’re experts at convincing us to share our food with them. Since they can eat many fruits and vegetables that humans also eat, it’s best to choose healthier options than junk...

    Can-Dogs-Eat-Blueberry-Muffins

    Raised Right Human-Grade Dog Food Review 2025: Veterinarian-Backed Dog Food

    In 2016, a new dog food company emerged from one family’s desire to feed their own dogs a better food. Braeden Ruud and his family, concerned about a recent outbreak of dog food recalls, had begun cooking for their pets...

    Dogster_Raised Right Human-Grade Dog Food Review

    Can I Feed My Dog Store-Bought Kibble? Vet-Approved Nutrition Facts

    As owners humanize their dogs and the pet industry pushes innovation, dog food has diversified significantly in recent years. Fresh, freeze-dried, and homemade meals now enjoy more attention, prompting many long-time pet parents to ask, “Whatever happened to good ol’...

    dog food in plastic container

    Can You Bring Dog Food on a Plane? 2025 Update & FAQ

    Traveling with pets is a stressful experience, and knowing what you can and can’t bring with you is critical to ensuring that your dog receives the best possible care it can get while traveling. You can bring solid pet food...

    Bowl of dog food inside the plane

    Dr. Marty Dog Food vs The Farmer’s Dog (2025 Comparison): Pros, Cons & What to Choose

    Pet food has come a long way, with many brands, options, and ingredients claiming to be this or that. Pet food manufacturers go the extra mile with their marketing efforts, claiming their brand is complete, balanced, and wholesome for your...

    Dogster_Dog Food Dr. Marty VS The Farmer_s Dog