Could a common ointment be safe for the nose? a new study investigates
NCT ID NCT07698938
First seen Jul 13, 2026 · Last updated Jul 15, 2026 · Updated 2 times
Summary
This study tests whether applying Neosporin—a triple-antibiotic ointment—inside the nose is safe for healthy adults. Participants apply the ointment daily for 15 days and record any side effects. Nasal swabs are taken before and after to see how the bacteria in the nose change. The goal is to fill a gap in knowledge, since this common practice has never been formally studied.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Neosporin (polymyxin B sulfate, bacitracin zinc, neomycin sulfate)
- What this could lead to
- If safe, this could support using Neosporin inside the nose for preventing or treating infections in clinical practice.
- What could go wrong
- This is a very small early study with only 12 healthy participants, so results may not apply to everyone. Allergic reactions or antibiotic resistance are possible risks.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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Sign up to get updates when this study changes or when new studies for TESTE THE SAFETY OF (POLYMYXIN B SULFATE 500,000 IU, BACITRACIN ZINC 40,000 IU, NEOMYCIN SULFATE 0.35G NEOMYCIN BASE) INTRANASALLY are added.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Hospital Universitario "Dr. José Eleuterio González"
Monterrey, Nuevo León, 64460, Mexico