How is congenital preauricular fistula treated?

Patient's question:

Consultation Description: Son 1 is 18 years old. He has congenital preauricular fistula with purulent discharge. The county hospital only performed drainage and anti-inflammation, without implementing cleaning. Xiao Yan has been on medication for over 20 days. Will it cause damage to the liver and kidneys? Now being treated at the provincial children's hospital. The doctor has placed medication inside. Besides changing the medication for a few days, the surgery will be performed once the inflammation subsides.
Help Needed: Will receiving so many IV drips cause damage to the liver and kidneys? What is the specific treatment method?

Doctor's answer:

Congenital preauricular fistula is a common congenital external ear disease in clinical diagnosis. It is a remnant of the incomplete fusion of the auricular primordia of the second and second branchial arches during development. The hereditary characteristic is autosomal dominant with skipping generations. It is recommended to seek follow-up in the otolaryngology department promptly, hoping this can help you.

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