Now demonstrated as a true devotee, Rama cured him and blessed him with immortality, but Hanuman refused this and asked only for a spot at Rama's ft to worship him. This type of Hanuman is very popular, and is also referred to as Panchamukha Anjaneya or Panchmukhi Anjaneya. (Anjaneya, https://www.youtube.com/watch?v=ufkmD95y7fE