Can MMR Vaccine Cause Diaper Rash?

  • By: Julie Miller
  • Time to read: 5 min.

The MMR vaccine is a common immunization given to children in the United States and worldwide. It helps protect against measles, mumps, and rubella. However, some parents are concerned that the vaccine may cause diaper rash.

In this blog post, we will explore the relationship between the vaccine and diaper rashes. We will also provide information on how to treat diaper rashes caused by this vaccine.

But yes, the MMR vaccine may cause a diaper rash. The vaccine can trigger a reaction rash in the stomach and diaper site and they should be treated as normal diaper rashes.

What Is the MMR Vaccine Given For?

The MMR vaccine protects against three diseases: measles, mumps, and rubella.

Measles can cause serious health complications, including pneumonia, sore throat, runny nose and brain swelling.

Mumps can cause deafness, meningitis, muscle aches, and painful swelling of the testicles or ovaries.

Rubella can cause serious birth defects in unborn babies.

The MMR vaccine is safe and effective at preventing these diseases.

Who Should Receive the MMR Vaccine?

Unless there are specific medical reasons for not having the MMR vaccine, all children should have it. The MMR vaccine is vital to stop the highly contagious diseases of Measles, mumps and rubella.

According to the Centers for Disease Control and Prevention, the MMR vaccine is typically given to children in two doses. The first dose is given when a child is 12 to 15 months of age, and the second dose is given when a child is 4 to six years of age.

If your children have missed the due date of any doses of the MMR vaccine, they should receive them as soon as possible. There is no time limit for receiving missed doses, so it’s never too late to get them up to date on their vaccinations.

Who Should Not Take the MMR Vaccines?

There are people who should not take the vaccine.

  • Pregnant women
  • Patients with severe health conditions such as tuberculosis
  • People with an existing infection
  • People who are suffering from chronic pain

What Are the Side Effects of MMR Vaccine?

Possible vaccine reactions and symptoms post-vaccination include:

  • A sore arm and mild pain can occur on the injection site
  • Mild rash
  • Hives
  • Temporary joint pain or stiffness
  • Runny nose
  • Fever
  • Cough
  • Discomfort on the site
  • Redness on the injection site

Local reactions to the MMR vaccination include pain, redness, and minor swelling. These reactions typically resolve within a few days.

Some people may experience more severe reactions, such as fevers or rashes. However, these are rare and usually go away on their own.

You should expect mild fever after the measles vaccine (part of the MMR). The fever is usually mild. However, prolonged fever is a sign of a severe allergic reaction to the vaccine.

In extremely rare cases, the vaccine can cause severe (often life-threatening) allergic reactions in people with a compromised immune system. These reactions include swelling of the face and throat, difficulty breathing, and loss of consciousness.

If you are concerned about any of the immunization reactions your child is experiencing or when you notice an allergic reaction, please report them to your doctor.

Additionally, the vaccine might interact or cause a reaction when taken with other medicine.

The MMR vaccine is a safe and effective way to protect yourself, your family and the community from the measles, mumps, and rubella viruses. Vaccination is the best way to prevent these diseases.

Is a Reaction to the Vaccine Normal?

A reaction to the vaccine is completely normal and can be expected. Most of the time, the reaction is mild and should not be a health concern.

Can Babies Get a Rash After MMR Vaccines?

Yes, sudden mild pain and rashes on the body (sometimes accompanied by fever) are common symptoms of the vaccine. They usually appear around two weeks after vaccination and last for a few days.

Body rashes are generally mild and do not require treatment, but in rare cases, they can be a sign of a more serious reaction especially if the accompanied fever doesn’t go away after a few days.

Sometimes the redness and rash can occur in the stomach and diaper site and they should be treated as normal diaper rashes. They aren’t usually accompanied by pain, but they can occur as well.

Is Rash After MMR Vaccine Contagious?

No, the rash is not contagious and usually lasts for a few days. It typically appears as red dots on the body that are not itchy or painful. If you or your child develops a rash after vaccination, there is no need to worry. It is not contagious and will go away on its own in a few days.

How to Treat Diaper Rashes Caused by MMR Vaccines

If your baby has diaper skin rashes, there are a few things you can do to help treat it.

  • Change diapers often. This will help to keep the area clean and dry.
  • Avoid acidic foods because they can alter your child’s poop by making it more acidic. Give them starchy foods instead. Sweet potatoes, rice, and oatmeal are good examples of these foods that are easily digestible by your baby.
  • You can also try putting your baby on a diaper-free time for a while each day to let the skin air out.
  • Use a rash cream. There are many different brands available but look for creams that contain zinc oxide. Zinc oxide creates a protective barrier that helps prevent moisture build-up on the skin.
  • Avoid using baby wipes that contain alcohol and other harmful chemicals on the skin. Instead, use a soft cloth and warm water. These steps should help to clear up the rash in no time.


Generally, the MMR vaccines are a safe and effective way to protect your family and community from measles, mumps, and rubella viruses. Vaccination is the best way to strengthen the immune system against these viruses. And it can be a huge part of your parenting journey.

Mild rashes and swelling are common side effects and usually last for a few days. If you or your child develops a rash after receiving the vaccines, there is no need to worry. It is not contagious and will go away on its own in a few days. Report any severe symptoms to your doctor.

In the case of a sudden nappy rash, you can treat it at home with a few changes to your diapering routine, diet modification as well as home remedies.


Can Pregnant Women Get MMR Vaccines?

It prevailing advice is that pregnant women should not get MMR vaccines during pregnancy. Pregnant women are at an increased risk of developing the disease from the weakened virus from the vaccine during pregnancy.

Tracking pregnancy development and baby growth and health is important. If you are planning to be vaccinated during pregnancy, it’s best to report to your doctor or healthcare professional your health concerns, advice and support.

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