Dogs can also have seasonal (pollen) allergies. For example, during the spring and autumn seasons, allergy symptoms can occur for 3-4 weeks and then subside on their own. Symptoms of seasonal allergies may include: sneezing, coughing, teary eyes etc. There are many reasons why your puppy may develop seasonal allergies. Some dogs are allergic to mould spores, dust, plant and tree pollen, flea saliva, fungi, weeds, grass and feathers.
