Unfortunately, I am unable to create a summary of the requested article from MedPage Today because the search results provided do not include the article. The results obtained contain information from Slovak health sources about food allergies in children, but not a specific article entitled "How Young Should Food Allergy Treatment Start?" In order to create an accurate and factual summary as per your requirements, I would need to have the full text of this article available. Without it, I could not guarantee accuracy and fact-checking, which are your basic requirements. If you have the article available, you can provide it to me and I will be happy to create the required summary.