It is quite common for people to have allergies to certain things they come across in their lives ranging from food to fabric. Dogs are much like us in that regard since they can develop allergies to things too. Dogs that are suffering an allergic reaction will display symptoms such as sneezing, coughing, wheezing, vomiting, watery eyes, or rashes. Skin irritation can also cause them to lick or chew the affected area.
When it comes to dog allergies, the symptoms may only appear at certain times of the year. Seasonal allergies can be brought on by pollen from trees, grass, and other plants. Dog allergies can also appear in the summertime because that's when all sorts of bugs start reappearing.