Hanuman, with the faces Hanuman, Hayagriva, Narasimha, Garuda and Varaha is the Form of Panchamukha Hanuman.
Knowledge(Hayagriva),Narasimha(Destructive Power)Garuda(Swift Flight and Destroyer of Evil Forces) and Varaha (Uncontrollable anger)Wisdom) as one of the faces.
After Indrajit was killed by Lakshmana, Ravana sought the help of Ahiravana,Brother of Ravana).
Ahiravana lived in the Patala Loka.
Ahiravana took the form of Vibhishana entered the room where Rama and Lakshmana were conferring,hoodwinked Hanuman and kidnapped Rama and lakshmana.
On being informed by Vibhishana that Ahiravana was planning to kill Rama and Lakshmana,who were unconscious in the Patala Loka, and offer them to Chandi, Hanuman took to the Patala through one of the entrances to the Nether World,Patala, from Patalkot, Chhindwara District ,Madhya Pradesh, India.
The route is a Wormhole.
In the process Hanuman defeated His son Makardhwaja and killed Ahiravana after assuming Panchamukha Hanuman Form.
The Patala Loka is the present Brazil, Mexico and Central America.
Please read my posts on this.
Panchamukha Hanuman Mantra for removing the effects of Scorpion, Rat Bites.
Recite the Mantra provided below for ten times, keeping the right palm on the head of the affected.