Rod Brouhard is an emergency medical technician paramedic (EMT-P), journalist, educator, and advocate for emergency medical service providers and patients.

Michael Menna, DO, is a board-certified, active attending emergency medicine physician at White Plains Hospital in White Plains, New York.

Neosporin can help keep a cut from getting infected, but it should not be used on every type of open wound. A minor cut, burn, or scrape might be fine to treat with antibiotic ointment, but it is not a treatment for deeper wounds.

This article explains what Neosporin is, the types of wounds you can treat with Neosporin, the side effects of Neosporin, and when to see a healthcare provider instead of treating a cut at home.

Neosporin is an over-the-counter (OTC) triple-antibiotic ointment. It contains three antibacterial agents: neomycin , bacitracin , and polymyxin . Triple-antibiotic ointments are commonly used to prevent infection and encourage healing.

Using a triple-antibiotic ointment may help minor cuts and scrapes heal quickly and with less pain. However, the ointments are not necessary for every kind of wound. You can often get the same results by bandaging the cut, keeping it moist, and changing the dressing often.

An antibiotic ointment like Neosporin is basically petroleum jelly with antibiotics added to it.

In the 1990s, researchers compared antibiotic ointment to petroleum jelly to see which treatment was best for wound healing. The study found that there was no statistical difference between using petroleum jelly with an antibiotic and using the jelly without an antibiotic.

Most people with healthy immune systems can heal from a minor cut, burn, or scrape without using an ointment like Neosporin.

However, if you have a medical condition that increases your risk for infections or affects your body's ability to heal (such as diabetes) ask your healthcare provider about how you should treat wounds.

Neosporin can have side effects, and there are some important things you should know before you use it.

Some people develop an allergic reaction to Neosporin that causes redness, itching, and burning of their skin (contact dermatitis). They might think the skin reaction is a sign of infection and put on more Neosporin, which actually makes the inflammation worse rather than better.

The neomycin in the ointment is most often the cause of the allergic reaction. If a person has a reaction, a double-antibiotic ointment like Polymycin (which only has bacitracin and polymyxin in it) can be used instead.

Another major concern about Neosporin is that using the product too much or for too long may lead to the antibiotics not working as well or not working at all (antibiotic resistance).

Antibiotic resistance occurs when bacteria are no longer effectively "wiped out" by the antibiotics that are usually used to treat them. This can happen after they have been exposed to the antibiotic many times.

For example, a study published in Emerging Infectious Diseases suggested that OTC topical antibiotics have contributed to the rise of methicillin-resistant Staphylococcus aureus (MRSA) infections.

The occasional use of Neosporin is unlikely to cause any harm, but you don't want to (or need to) use the ointment for every cut, bite, or scrape.

You should never use Neosporin on large areas of skin. If you get a large or deep cut or burn, it needs to be treated by healthcare provider or at an urgent care facility.

Treating a minor cut or scratch is mostly about keeping it clean—but the only thing you really need for this is water.

Here are step-by-step instructions for caring for a wound at home:

Neosporin is a triple antibiotic ointment that's available without a prescription at most pharmacies and grocery stores.

Neosporin ointment can help treat minor cuts, abrasions, and burns, and may help speed healing and ease the pain. However, proper wound care can do the same thing without the need for a topical antibiotic, which comes with side effects and risks.

Neosporin is generally safe but is not always necessary. It's also not appropriate to use on large areas of injury or deep cuts or burns. These wounds need to be treated by a healthcare provider.

Neosporin may help treat a minor burn, but it should never be used on a large area of skin, especially if you have a chronic skin condition. Serious burns or deep cuts should be treated by a healthcare provider.

Neosporin should only be used for minor skin wounds. If a large area of skin is injured or the wound is deep, it needs to be treated by a healthcare provider. You may need to be seen at an urgent care clinic or emergency room.

The best way to prevent a wound infection is to make sure that you clean the wound of any debris, like dirt. Neosporin (and even just petroleum jelly) can help keep the skin moist and promote healing. The antibiotic part of Neosporin can also help prevent infection.

According to the American Academy of Dermatology Association, petroleum jelly is usually the best ointment for minor cuts.

Apply it continuously to keep the wound moist until it heals. It also helps to use petroleum jelly from a tube instead of a jar to limit the spread of germs.

Bacitracin is one of three antibacterial agents in Neosporin. The other two are neomycin and polymyxin.

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By Rod Brouhard, EMT-P Rod Brouhard is an emergency medical technician paramedic (EMT-P), journalist, educator, and advocate for emergency medical service providers and patients.

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