Parents often carry antibiotic ointments when taking their children to playgrounds, aiming to prevent infections from common scrapes and cuts. However, evidence suggests that these topical antibiotics may not offer significant benefits over simpler alternatives like petroleum jelly.

A landmark randomized controlled trial published three decades ago in the Journal of the American Medical Association involved nearly 1,000 patients who had undergone minor skin surgeries. The study compared the effectiveness of topical bacitracin, an antibiotic ointment, with petroleum jelly. The wounds were cleaned, treated with either the antibiotic or petroleum jelly, and then covered with gauze and a plaster. After one month, infection rates and healing outcomes were similar in both groups. Subsequent studies have reinforced these findings.

While antibiotic ointments are often perceived as harmless, they can cause adverse reactions. Allergic contact dermatitis triggered by topical antibiotics, particularly neomycin, affects approximately 5% of children and 2% of adults. Symptoms include redness and itching, which sometimes necessitate treatment with steroid creams. Such allergic reactions can mimic wound infections, complicating diagnosis. Shoshana Marmon, assistant professor of dermatology and director of clinical research at New York Medical College, noted that inflammation from an allergic response to antibiotics may be mistaken for an infection.

In contrast, petroleum jelly is inexpensive, widely tolerated, and poses fewer risks for allergic reactions. Many dermatologists emphasize that for most clean and uncomplicated cuts or scrapes, proper wound care—consisting of thorough cleaning, maintaining moisture with petroleum jelly, and covering the wound—is sufficient to support healing.

“People often assume that adding an antibiotic ointment automatically makes a minor wound safer,” said Marmon. Dr. Trisha Pasricha of Harvard Medical School echoed this view, underscoring the effectiveness of standard wound care measures without the routine use of topical antibiotics.

Given these considerations, the routine application of antibiotic ointments for minor wounds may warrant reconsideration, balancing the limited benefits against potential allergic complications and costs.