Guideline for Topical Antibiotic Use in Infants with Middle‑Ear Access

First‑Line Topical Therapy

The American Academy of Otolaryngology‑Head and Neck Surgery (AAO‑HNS) recommends quinolone ear drops (ofloxacin or ciprofloxacin‑dexamethasone) as the preferred topical antibiotics for infants with ear infections that involve a perforated tympanic membrane or tympanostomy tubes. 1, 2, 3
Quinolone ear drops are specifically approved for use in an open middle ear and do not carry the ototoxicity risk associated with aminoglycoside preparations. 4, 5
Clinical cure rates with topical quinolones range from 77 % to 96 %, markedly higher than the 30 % to 67 % cure rates observed with systemic antibiotics alone. 3, 6

Aminoglycoside‑containing ear drops (e.g., gentamicin) should not be prescribed when the middle ear is accessible through a perforation or tympanostomy tubes because of the potential for ototoxicity. 4, 5, 7

Drops should be instilled twice daily for a maximum of 7–10 days. Extending therapy beyond 10 days increases the risk of fungal superinfection (otomycosis). 1, 2, 8, 4, 5, 7

Prior to drop administration, the ear canal should be cleared of debris using a cotton‑tipped swab with hydrogen peroxide or gentle suction with an infant nasal aspirator. 4, 5
The affected ear is positioned upward during instillation. 9
After instillation, the tragus should be “pumped” 3–5 times to promote drug delivery to the middle ear. 4, 5, 9
The ear is then kept in the upward position for 3–5 minutes to allow adequate absorption. 9
Water entry into the ear must be prevented throughout the treatment period. 4, 5, 8

Oral antibiotics should be added to topical therapy when any of the following are present: