。
She's gradually getting better.
Literal
She [topic-は] gradually recovery [toward-に] is-heading.
快方に向かう is a set phrase meaning 'to head toward recovery,' commonly used in medical or health contexts. 快方 is a somewhat formal or written word for getting better — in casual conversation you'd more likely hear 良くなってきている. The ~ている marks this as an ongoing process: she's in the middle of recovering, not yet fully recovered. 徐々に reinforces the slow, steady nature of the improvement.