What is one of the items that came in the Red Cross package?

From the text:

Betsie and I put our belongings into the pillowcases we had brought from Scheveningen: toothbrushes, needles and thread, a small bottle of Davitamon oil that had come in a Red Cross package, Nollie’s blue sweater, which was the only thing we had brought with us when we left the quarantine camp ten weeks before