Unfortunately, allergies to dogs occur when the immune system reacts to proteins found in a dog’s dander (dead skin flakes), saliva, or urine. Basically, these proteins, called allergens, can trigger allergic reactions in susceptible individuals. But, symptoms of dog allergies can vary from mild to severe and may include the following, Photo courtesy of Dreamstime Most Common Symptoms of Allergies Sneezing Firstly, one of the most common symptoms of dog allergies is sneezing, especially when exposed to dog dander or saliva. Runny or stuffy nose Allergic reactions to dogs can cause nasal congestion, a runny nose, or post-nasal drip. Itchy, … Continue reading Allergies? Tips for Allergy Sufferers With Dogs