Cat allergy: Greetings. Yes, Allegra (fexofenadine) can be used regularly for a fixed allergic exposure. Other medications could be added as needed. Since he was allergy tested, was he highly allergic? Does he have asthma? Is he allergic to other triggers? All these questions are important to see what might be best. Even allergy shot desensitization may be helpful. Follow up with your Allergist if Allegra (fexofenadine) isn't working.
Answered 3/3/2016
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