Can Dog Shampoo Cause Allergies?

Can Dog Shampoo Cause Allergies? Shampoos for dogs can contain a number of ingredients that can cause skin irritation and even allergic reactions. These reactions usually occur rather rapidly after exposure and often become more intense with repeated applications. What are the symptoms of shampoo allergy? Red, burning, or itchy skin. Scaly patches. Oozing blisters.