If you’ve tried everything—changing their food, switching shampoos, treating for fleas—but your dog is still itching, it’s likely environmental allergy, which is unsurprisingly the most common type of allergy in dogs.
Most pet parents don't realize that 10-15% of all dogs suffer from environmental allergies — reactions to everyday substances like pollen, grass, dust mites, and mold.
How do these tiny allergens cause such a big reaction?
The answer lies in your dog’s skin barrier—the natural protective layer that’s supposed to block allergens from getting inside.
When it’s healthy, it works like a shield.
But when it becomes dry, damaged, or irritated—whether from overbathing, excessive licking, or age—that shield starts to break down.
A broken skin barrier lets environmental allergens pass through and trigger inflammation, resulting in that familiar, maddening itch we all dread.
