| Brand | Neosporin |
| Distributor | Kenvue Brands LLC |
| Product Type | First aid triple antibiotic ointment |
| Bacitracin Zinc | 400 units per gram |
| Neomycin Sulfate | 3.5 mg per gram |
| Polymyxin B Sulfate | 5,000 units per gram |
| Dosage Form | Topical ointment |
| Package | 1 oz (28.3 g) tube |
| Primary Purpose | Help prevent infection in minor cuts, scrapes and burns |
| Application Frequency | 1 to 3 times daily |
| Prescription Status | Over-the-counter (OTC) |
| Storage | 68°F to 77°F (20°C to 25°C) |
Triple Antibiotic Ointment for Minor Skin Injuries
Neosporin Original Antibiotic Ointment contains three topical antibiotics that help prevent infection in minor cuts, scrapes and burns. Its ointment base spreads over a cleaned wound and can be covered with a sterile bandage.
The original formula contains bacitracin zinc, neomycin sulfate and polymyxin B sulfate. It is intended for short-term external use, not for treating deep or serious wounds.
Pharmacy Availability
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What Neosporin Original Is Used For
Neosporin Original is labeled for first aid use to help prevent infection in small skin injuries. A shallow kitchen cut, a scrape from a fall or a minor superficial burn may fall within its intended uses, provided the injury does not require more extensive treatment.
The ointment is applied after cleaning the affected area. It does not remove dirt, stop significant bleeding or replace a suitable wound dressing when one is needed.
Neosporin is not a general treatment for every skin problem. Rashes, fungal infections and viral skin conditions have different causes, and adding a topical antibiotic will not necessarily help. Likewise, an established skin infection with spreading redness, pus or increasing pain should not be managed solely with an over-the-counter ointment.
Three Active Antibiotics in Neosporin Original
Each gram of Neosporin Original contains three antibiotic ingredients. They have different antibacterial actions, which is why the product is described as a triple antibiotic ointment.
Bacitracin Zinc
Bacitracin interferes with bacterial cell-wall formation. It is particularly active against certain Gram-positive bacteria and is used here as part of the topical combination.
Neomycin Sulfate
Neomycin belongs to the aminoglycoside antibiotic class. It interferes with bacterial protein production and contributes activity against susceptible bacteria.
Neomycin is also a recognized cause of allergic contact dermatitis. A rash after applying the ointment should not automatically be interpreted as a worsening wound infection; the product itself may be responsible.
Polymyxin B Sulfate
Polymyxin B acts primarily on the outer membranes of susceptible Gram-negative bacteria. Its presence complements the other two antibiotics.
The ointment base includes petrolatum and other inactive ingredients that give the product its thick consistency. The base helps the ointment remain on the application site, but Neosporin should not be confused with plain petroleum jelly: it contains active medications and carries additional allergy-related precautions.
How to Apply Neosporin Original Ointment
Only a small amount is needed. The Drug Facts directions specify an amount approximately equal to the surface area of a fingertip, applied to the affected area one to three times daily.
Clean the Injury
Wash your hands and gently rinse the minor cut or scrape with clean running water. Remove visible debris. If bleeding is present, use gentle direct pressure until it stops.
Apply a Small Amount
Spread a thin layer of ointment over the affected area. Avoid touching the tube opening directly to the wound or other contaminated surfaces.
Cover if Needed
A sterile bandage may be placed over the treated area. Choose a dressing that covers the injury without sticking tightly to damaged skin.
Do not apply Neosporin over large areas of the body. If the wound needs treatment for longer than one week, or if symptoms persist or worsen, stop self-treatment and seek medical evaluation.
Using more ointment than directed does not make a wound heal faster.
When Neosporin Should Not Be Used
Anyone with a known allergy to neomycin, bacitracin, polymyxin B or another ingredient in the formula should avoid this product. It must not be applied in the eyes.
The manufacturer also instructs users to seek medical guidance before applying Neosporin to:
- Deep cuts or puncture wounds.
- Animal bites.
- Serious burns.
These injuries may need wound examination, additional cleaning, tetanus assessment or other treatment. An antibiotic ointment cannot address all of those risks.
Do not use Neosporin inside the nose, mouth or other body cavities unless a clinician specifically directs an appropriate treatment. The original ointment is formulated for external skin use.
Possible Side Effects and Allergic Skin Reactions
The most important adverse effect to recognize is contact allergy. Itching, redness, a spreading rash, swelling or small blisters at the application site can develop in someone sensitive to the ingredients.
Stop using the ointment if a rash or other allergic reaction occurs.
Distinguishing irritation from infection can be difficult. An allergic reaction may develop in the same area as the original wound, while infection can also cause redness and swelling. Increasing warmth, pus, fever or worsening pain requires medical attention rather than repeated application of the ointment.
Severe allergic symptoms such as difficulty breathing or swelling of the face or throat require emergency care.
Neosporin Original and Plain Petroleum Jelly
Not every minor wound requires a topical antibiotic. For uncomplicated, properly cleaned cuts and scrapes, plain petroleum jelly and an appropriate dressing may be sufficient to keep the wound protected during healing.
The difference is straightforward: petroleum jelly acts as a protective moisture barrier, while Neosporin adds three antibacterial medications. Those medications may be useful in situations covered by the product’s labeling, but they also introduce the possibility of antibiotic-related skin reactions.
Neosporin should therefore be used for its intended first aid purpose, rather than automatically applied to every scratch or dry patch of skin.
Storage and Tube Care
Store the ointment at 68°F to 77°F (20°C to 25°C). Keep the cap securely closed and the tube opening clean.
Do not share a tube if its tip has come into direct contact with an open wound. Avoid introducing water or other products into the container, and keep Neosporin out of children’s reach.
If swallowed, obtain medical help or contact a Poison Control Center immediately.