Pugs, along with bulldogs and Boston terriers, often react to allergens such as mold spores, pollens, dander, house dust mites and even cigarette smoke. They are also capable of reacting to a range of allergens common among many dog breeds and people. Pugs' flat faces make the breed particularly prone to seasonal and other airborne irritant allergies.
Pugs have been known to develop allergies to everything from fleas to flea-control products. Other potential pug allergies are a reaction to fabrics; perfumes; cleaning products; feathers; food ingredients such as chicken; corn, soy and wheat; and rubber materials.
In some cases, pugs' allergic reactions to vaccinations are so severe that their airways close and they die. For this reason, pug experts recommend watching a pug for up to four hours after it receives its vaccinations.
Signs a pug is experiencing an allergic reaction to something in its environment include skin irritation around the eyes, mouth and armpits; red, chronic diarrhea; and/or vomiting and sneezing. A pug that regularly licks its paws or rubs its face is also likely experiencing some type of allergic reaction. Veterinarians are often able to treat dog allergies with a number of methods, including prescription shampoos and topical sprays.