What does Annabelle's mother use to treat Betty's poison ivy in the novel, Wolf Hollow?

Jewelweed, a flowering plant, is a natural way of treating poison ivy, such as the kind that Betty contracts. Annabelle is enlisted by her mother to help collect and transform jewelweed into a medicinal broth to be used on Betty. Annabelle’s decision to be kind to her enemy, rather than refusing to help Betty, is emblematic of the strengths of the Christian faith Annabelle and her family practice.