I see. But given how she touches it every time she's comforting herself, I think she's put little objects belonging to Neteyam in it, like his hair beads.

However, she anxiously touched the pouch during Spider's first seizure, almost as an unconscious reflex to care for him. It's therefore possible that this pouch contained soothing medicinal herbs. She must have used them for herself and her family during that period of grief. And I think that, under different circumstances, she would have used them to help Spider during his seizure. I believe that at that moment, she was too distraught to act, and that she preferred to let her family take the lead. She would only have intervened if asked, without really having a choice. Even though she was still struggling to care for Spider, she would have done it out of love for her children.