@collierga, That must be comforting and reassuring to you also, as well as your daughter and son in law. Thank you for sharing the update. Have you ever used Google Scholar (https://scholar.google.com/)? I did a search using "alopecia + children + hair loss + home remedies" and found a free book - Hair and Scalp Treatments - Treatments in Children that you can download as a PDF or an EPUB format file: https://link.springer.com/chapter/10.1007/978-3-030-21555-2_16

I haven't looked at it too closely but the introduction sounds like it might offer some suggestions and it was first made available online September 13th, 2019.
"Introduction
Hair loss in children is a distressful situation for patients and, particularly, parents. Treatment of these patients is commonly a source of concern for physicians as well. It is important to correctly identify the cause of hair loss in children and to determine if there are any potential underlying medical conditions that will require further investigation and care. Additionally, lack of clinical trials and clinical research results in a paucity of data regarding treatment efficacy and safety in this specific population. Weighing the risks versus benefits of therapy for hair loss is a point that has to be readdressed in every consultation. In this chapter, we discuss treatment of common types of hair loss in children based on current literature and experience."

Thanks again for sharing the update which is helpful for other members of the discussion.