If your dog has gone from the occasional scratch to constant licking, chewing, and rubbing their face along the carpet over the last few weeks, you’re not imagining it. Mid-summer is peak allergy season in Calgary, and it’s one of the most common reasons we see dogs — and the occasional cat — come through our doors at Sanctuary Veterinary Hospital between June and September. Families across Sage Hill, Nolan Hill, Evanston, Panorama Hills, Country Hills, Sherwood and Kincora ask us the same question almost daily right now: is this just an itch, or is it something that needs treatment?
What’s Actually Causing the Itch
Most summer itching falls into one of a few categories, and they often overlap:
Environmental (seasonal) allergies. Grass, tree, and weed pollens peak through Calgary’s summer months. Dogs absorb these allergens through their skin and paws as much as through breathing, which is why allergic dogs often focus their scratching on their feet, belly, armpits, and face rather than sneezing the way an allergic person would.
Fleas and flea-bite hypersensitivity. Even a single flea bite can trigger an outsized reaction in a sensitive dog. If the itching is concentrated near the base of the tail and back legs, flea allergy is worth ruling out even if you haven’t actually spotted a flea.
Trapped moisture. A swim in the river, a romp through sprinklers, or just a humid afternoon can leave moisture trapped under a thick coat, in skin folds, or under floppy ears. That damp environment is exactly what bacteria need to flourish, and it’s a leading trigger for hot spots specifically.
Contact irritants. Certain grasses, lawn treatments, and plants can cause localized irritation anywhere the skin made direct contact, separate from a true allergic response.
When Itching Turns Into a Hot Spot
A hot spot — the clinical term is pyotraumatic dermatitis — starts as ordinary itching but spirals fast. A dog licks or scratches an irritated area, which damages the skin barrier, which lets bacteria move in, which makes the spot itchier and more painful, which leads to more licking. The whole cycle can turn a small irritation into an angry, oozing, foul-smelling patch within 24 hours. Hot spots are especially common in dogs with thick or double coats — Golden Retrievers, German Shepherds, and similar breeds are well represented in NW Calgary and are particularly prone to them.
The telltale signs are a red, moist, often hairless patch that appears suddenly, feels warm to the touch, and seems disproportionately painful for its size. Dogs will often try to bite or scratch at the area aggressively, sometimes to the point of becoming snappy if you try to touch it.
What You Can Do at Home (For Mild, Brand-New Cases)
If you catch a hot spot within the first few hours and it’s small, gently clean the area with a mild, vet-approved antiseptic and trim the surrounding hair so it stays dry and visible. An e-collar or soft recovery cone can stop the licking cycle long enough for it to start healing. Watch closely over the next day — if it isn’t visibly improving, or if it’s already more than a day old when you notice it, home care usually isn’t enough on its own.
When to Bring Your Dog In
Come see us if the area is spreading, oozing, or smells off; if your dog seems painful when you touch it; if the itching is widespread rather than one localized spot; or if this is a recurring pattern rather than a one-off. Hot spots and allergic skin almost always need more than just topical care once they’ve progressed — most dogs benefit from clipping the area properly, an antimicrobial treatment, and sometimes a short course of anti-inflammatory or anti-itch medication to break the scratch-lick cycle.
We also offer therapeutic laser treatment, which many of our patients respond well to for hot spots and inflamed skin — it can meaningfully speed up healing and reduce discomfort alongside standard treatment. If your dog’s itching has been recurring all summer rather than a single isolated spot, that’s worth a proper exam through our Checkups and Exams page so we can look for an underlying allergy pattern rather than just treating the latest flare-up.
Could It Be a Food Allergy Instead?
True food allergies are less common than environmental ones, but they’re worth ruling out if your dog itches year-round rather than just in summer, or if the itching comes with digestive upset. Diet plays a real role in skin health more broadly too — certain proteins and a properly balanced omega intake can make a noticeable difference for allergy-prone dogs. Our Nutrition & Diet page has more on how we approach this with patients.
Prevention for the Rest of the Season
Rinse your dog’s paws and belly after walks through long grass, especially during peak pollen days. Dry them thoroughly after any swim or sprinkler session — towel under the collar, between the toes, and under the ears, where moisture likes to hide. Stay current on flea prevention through the warm months even if you haven’t seen a flea; by the time you do, an allergic dog has likely already been bitten. And if your dog has a history of hot spots, keep an e-collar on hand at home so you can intervene the moment you spot the first signs, rather than after it’s had a full day to spread.
Frequently Asked Questions
My dog has a hot spot but seems otherwise fine — can it wait until next week?
Not usually. Hot spots can go from a small irritated patch to a significant, painful sore within 24 hours. It’s worth being seen within a day or two rather than waiting, especially if it’s already growing.
Is it normal for my dog to be itchy every summer?
A recurring seasonal pattern is actually a useful clue — it points toward environmental allergies rather than a one-off irritation. If this happens most summers, it’s worth discussing a longer-term management plan rather than treating each flare-up as a separate issue.
Can I just use human anti-itch cream or antihistamines on my dog?
Some human antihistamines are used in dogs under veterinary guidance, but dosing and suitability vary by medication and by pet, and human topical creams aren’t formulated for canine skin. Check with us before applying or giving anything not specifically labelled for dogs.
Are cats affected by summer allergies too?
Yes, though less commonly than dogs. Watch for excessive grooming, bald patches, or small scabs around the head and neck (often called miliary dermatitis). The same advice applies — if it’s persistent or worsening, it’s worth an exam.
If your dog has been scratching more than usual this summer, don’t wait for it to turn into a full hot spot. Book an appointment or call us at (403) 295-0305 and we’ll get them comfortable again.