preauricular sinus pit with persistent white drainage, which is consistent with a chronic accumulation of skin cells and debris within the narrow sinus tract. Antibiotics like Cephalexin and Bactrim treat active bacterial infections (cellulitis) but cannot remove the underlying tract, which acts as a reservoir for recurring drainage or a potential chronic abscess. Definitive treatment usually requires surgical excision of the entire tract, which ENTs typically prefer to perform once acute inflammation has subsided to reduce the risk of recurrence. It is common for drainage to continue if the tract is deep or branched, and surgery may still be performed while it leaks if the infection is stable rather than acute. Persistent drainage could also resemble a sebaceous cyst or an infection with antibiotic-resistant bacteria, so consider asking for a culture and sensitivity test.
Answered2026-03-25 07:56:45
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