I cannot create a summary of the requested article because the search results provided do not contain the text of the correspondence titled "Unanswered questions regarding the AIR strategy in children". The available result only applies to first-generation antihistamines in the treatment of allergies in children in general and is not relevant to your request. In order to create an accurate and factual summary as per your requirements, I need access to the full text of the article on the CARE trial and the AIR (Anti-Inflammatory Relief Therapy) strategy in children. I recommend checking if the article is available in full or providing its content directly.