An itchy dog and a positive allergy result
A dog has recurrent itching, red feet and ear discomfort. The owner arrives with a positive laboratory allergen result and assumes that all parasites, dietary contributions and secondary infection have already been excluded. Several treatments were given before the current visit, but the records are incomplete. The dog sometimes eats food and treats belonging to another household animal, which complicates a previous dietary trial. The clinician needs to describe the lesions, establish the history and choose a practical dermatological investigation. The owner wants a permanent cure from the test result alone, while the actual problem may involve several overlapping triggers and perpetuating factors that require different assessments.
1. What should be distinguished first?
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A positive allergen test alone is not the clinical diagnosis of atopic dermatitis. Review the lesion pattern, parasites, cytology, prior treatment and relevant dietary investigation.
2. How should the plan address the uncertainty?
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Explain controlled assessment, the role of a suitable challenge and the treatment of actual secondary disease. Follow response and recurrence without promising one test provides every answer.