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A:Border Collie with Allergies PetPlanet Vets PPAdmin email@example.com
I would urge you to go back to your own vet with your concerns, as it is impossible for me to say whether your dog has any chest disease without examining him. I can't be sure of the dosage of prednisolone you are giving, but an anti-inflammatory dose would be 0.5 - 1mg/kg/day. A border collie is about
20kg, so that would be up to four 5mg tabs/day. There are higher doses used for this drug, but these are immunosuppressive, and are used in auto-immune diseases and so on. At the anti - inflammatory dose, and for a ten-day period, your adult dog is unlikely to experience any significant side-effects. A common side-effect is increased thirst and urination. Over long periods of time and at high doses, steroids do suppress the immune
system and cause disease. Allergic pulmonary disease it more common in the cat than in the dog, but it is a recognised condition, and as you say he is better when the conditions are slightly wet, and he does get runny eyes after running in long grass,
then this sounds like a possibility to me. However, as I say, it would be best to discuss this with your own vet, as he may feel further tests such as radigraphs may be needed. Sarah Mark MRCVS (Vet for PetPlanet)