8 mo old allergy to dog cough, runny nose, congestion, crackling, wheezing. sick 3 months 2 antibiotics 2 diff allergy meds symptoms began after dog ?

Test for allergy?: You might consider other reasons such as food allergy or household irritants, if child has signs of allergic illness = atopy, you need to be smarter about what the allergen really is. If this came on months after dog exposure, hard to make the dog the source necessarily. Suggest skin/blood tests at 1 yr to confirm your hunch, avoidance may not be the solution