Food allergy or cold?

Is it possible to develop an allergy to formula after having been on it for eight months? My 10-month old daughter has had a runny nose and cough for the last four to five weeks. She has taken Simulac w/iron since she was two months old. Her doctor believes she has had a couple of back-to-back colds. I'm wondering if it's allergy-related. She has never shown any signs of allergies before and other than the congestion, has no other symptoms. For the past two months we've also introduced her to table foods (Cheerios, cheese, bananas, cooked ham, crackers).

Could her formula be the culprit after so much time or could it be one of the table foods?

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Sue Gilbert

Sue Gilbert works as a consulting nutritionist. For many years she worked with Earth's Best Organic Baby Food, integrating nutrition and... Read more

It is highly unlikely that your daughter has developed an allergy to the formula, although allergies can develop at any time in life. The majority of milk-based allergies show up in early infancy.

There is a chance one of the table foods may be causing the problem. When you introduced the table foods, did you introduce them one at a time and wait several days in between to see if she had any adverse reactions to any of them? If any of the table foods are causing her problems, you should have been able to pick up an association at that time. If you are unsure, then you can eliminate and reintroduce each food one at a time and notice any symptoms, or lack thereof.

Of course it could just be those colds your doctor mentioned that coincidentally happened as you were adding new foods, or maybe the runny nose is being caused by the irritation of some new teeth coming in. Should the cough and congestion continue for much longer you need to follow up with your doctor.

I hope your daughter is feeling better soon! Thank you for writing.

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