Oral steroids: These drugs have many potential side effects and are reserved for adult animals, those with short seasonal problems, or when other therapy is not possible or is ineffective. (sandiegopethospital.net)
Many patients may show seasonal problems initially and progress to nonseasonal signs as they become sensitive to more allergens. (todaysveterinarynurse.com)
Allergies are a common problem in dogs and can range from very mild seasonal problems to very severe and all year long. (boyetteanimalhospital.com)