What Are Dogs Allergic To In The Spring?

Angela Vuckovic
by Angela Vuckovic

While there are many lovely things about spring, this beautiful season of the year comes with one major downside – allergies. Spring allergies are triggered by various allergens, but they all have one thing in common, and that’s being horribly irritating. Sadly, it’s not just us humans who suffer sniffles and red eyes when everything is blooming and nature is awakening after winter. Our four-legged best friends can also be affected by spring allergies, and it may just be worse for them, as they can’t communicate what’s bothering them and can’t simply take Benadryl to ease their troubles for a bit. 

The first step towards helping your pooch deal with nasty spring allergies is realizing what exactly is causing them in the first place and trying to reduce or prevent all contact with the said allergen. Here’s what are the most common things that dogs are allergic to in the spring, and it’s a good place to start when figuring out why your pooch is sniffling in springtime.

Top 5 Spring Allergens for Dogs



Pollen is arguably the foremost cause of most allergies in dogs and people. It can come from trees, grass, and weeds, and it can trigger allergic reactions in dogs when they inhale it. What is more, pollen can cause an external reaction when it comes in contact with a dog’s skin, leading to nasty rash and itchiness. 


Another common allergen, mold can arise with the arrival of spring showers. If your pet spends time outside and comes into contact with something moldy or mold develops inside your home, a nasty allergic reaction can follow. It is important to know that mold can be prevalent in areas where there is high humidity, and in natural environments such as forests and swamps. Of course, if you notice mold in your home, it should be dealt with as quickly as possible. Just be sure not to use commercial mold killers as their strong fumes can be toxic for dogs to breathe in – use a  pet-safe mold remover instead.


Dust mites can be overwhelmingly present in spring, and will be most common in indoor places that were not cleaned or ventilated properly. Dust allergies can lead to sneezing, difficulty breathing, teary eyes, and other conditions. It often happens when owners are “spring cleaning”, thus rousing up large amounts of dust.  A quality air purifier can help keep the air in your home dust-free and fresh, both for you and your pet to enjoy.

Insect bites

Many tiny critters that come out in spring can cause allergic reactions in dogs. Bites from ants, wasps, or bees can be quite uncomfortable for some dogs and will cause itching and swelling. What is more, springtime is the period when fleas begin their life cycle because of the warmer weather. Some dogs can be allergic to flea saliva and can have an allergic reaction called atopic dermatitis. This can cause itchiness or rashes on their skin. 

Miscellaneous Outdoor Allergens

Depending on the area you live in, your pet could be facing various other miscellaneous allergens. Some natural environments have certain unique grasses and flowers that can cause allergic reactions, and wilderness areas can have diverse fungi, mosses, and lichens that will cause rashes and strong external reactions. 

Of course, if you suspect that your dog is suffering from seasonal allergies, it's essential to consult with a veterinarian. They can recommend appropriate measures to manage your dog's symptoms and improve their quality of life during allergy season. Never attempt to treat seasonal allergies on your own, as this approach can cause more harm than good. Leave the diagnosis and the treatment to the professionals, and all will end well. 

Angela Vuckovic
Angela Vuckovic

A proud mama to seven dogs and ten cats, Angela spends her days writing for her fellow pet parents and pampering her furballs, all of whom are rescues. When she's not gushing over her adorable cats or playing with her dogs, she can be found curled up with a good fantasy book.

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