With Vayu gone, on the other hand, human beings became asphyxiated and struggled for breath. So that you can attract the wind god from hiding, the devas petitioned Brahma to recover Hanuman's wounds, which he did. Also, the gods noticed to it that Hanuman was blessed with various boons https://www.youtube.com/watch?v=6cAOQp6Twlc&t=7s