With Vayu long gone, having said that, human beings turned asphyxiated and struggled for breath. In an effort to attract the wind god from hiding, the devas petitioned Brahma to heal Hanuman's wounds, which he did. Moreover, the gods noticed to it that Hanuman was blessed with numerous boons https://www.youtube.com/watch?v=6cAOQp6Twlc&t=7s