Hi welcome to Health care magic forum,
Ear pit is called preauricular sinus
and is a developmental defect, sometimes get infected.
When infected it needs treatment.
You can start a broad spectrum antibiotic and antiinflammatory drugs with give a hot foamentation to the area.
If no drugs available at present than at least you can give simple paracetamol
with a hot foamentation to relive pain.
hope this may help you at your emergency.