Hi Amalia! Welcome to the Forum! That’s a very noble request!
I suggest you make her a small charm bag with a lavender and rosemary, you can put those in a sachet bag for example.
And include some small crystals that you can charge in the next new moon (in 10 days), or if you can’t wait that long simply bless them with a prayer, such as:
“Oh Great Goddess,
Mother of Mercy and Healing,
Send the energy of Hygeia,
the nourish from Her Sacred Bowl.
Send the energy of Brigid to heal,
with waters of Her Sacred Well.
Send the energy of Demeter,
to restore life to withering cells.
Send the energy of Quan Yin,
to bless the healing with peace.
Send your healing wisdom to the body,
to restore its sacred balance.
Thank you Great Goddess
Mother of All Life”
Very best of luck to you both, and Blessed Be!