Asps only appear in groups together. They're mostly found in the beginning of the game.
Don't bother, just run away.
The Asp is called a Cobra in the Japanese version and FF Origins. Cobras are venomous snakes native to Africa and Asia. The skin on their necks expands into a hood. Asps are small venomous snakes native to Africa. Cobras don't appear in any later FFs.