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Can You Use Neosporin on an Open Wound?
Topical Antibiotic Safety Guidelines
March 31st, 2026
Can You Use Neosporin on an Open Wound?
Yes, Neosporin can be used on minor open wounds, but only for short periods. This topical antibiotic ointment contains three active ingredients—neomycin, polymyxin B, and bacitracin—that help prevent bacterial infections in small cuts, scrapes, and burns. The FDA recommends using it for no more than 7 days, as prolonged use can lead to antibiotic resistance or allergic reactions. Studies show that 8-10% of people develop contact dermatitis from neomycin. For deep wounds, puncture wounds, or animal bites, avoid Neosporin and seek medical attention instead. Clean the wound thoroughly before application and stop use if redness, swelling, or irritation worsens.
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