What are the principles of treatment and medication for congenital preauricular fistula?

Patient's question:

The child was born only a few days ago, and recently they have been scratching their ears for some unknown reason. Could you please tell me about the principles of treatment and medication for congenital preauricular fistula?

Doctor's answer:

Treatment Principles
　　1. No treatment is required for asymptomatic individuals.
　　2. For recurrent infections, fistula excision should be performed after inflammation is controlled.
Drug Usage Principles
　　1. Antibiotics and other supportive medications should be used in cases of concurrent infections.
　　2. For recurrent infections that form abscess fistulas, effective antibiotics (including new and special drugs) should be selected based on drug sensitivity tests.