18 month vaccinations side effects runny nose

Reactions to vaccines are common and almost always harmless. Severe allergic (anaphylactic) reactions to any vaccine are possible, but they are extremely rare or have never been reported. Listed below are the symptoms for a severe allergic reaction as well as common reactions to specific vaccines.

What should I do if my child has a severe allergic reaction?

A severe reaction is very rare. If it does happen, it is almost always within minutes after the immunization. Seek help immediately or call 911 if you notice the following severe allergic reactions:

  • trouble breathing
  • weakness
  • wheezing
  • fast heartbeat
  • hives
  • dizziness
  • paleness
  • swelling of the throat.

What are the possible reactions to the different vaccines?

The percentage listed next to each reaction shows the percentage of children who have this reaction.

Diphtheria-Tetanus-Pertussis (DTaP)

  • Pain, tenderness, swelling, or redness at the injection site for 24 to 48 hours (25% to 45%). Give your child ibuprofen or acetaminophen and place a cold, wet washcloth over the tender area.
  • Fever for 24 to 48 hours (7% to 26%). Give your child ibuprofen or acetaminophen if the fever is over 102°F (38.9°C). The next time your child gets a DTaP shot, give your child acetaminophen at your healthcare provider's office and continue the medicine every 4 to 6 hours for 24 hours.
  • Mild drowsiness (15%), poor appetite (10% to 15%) for 24 to 48 hours, or prolonged crying (more than 3 hours) (4%).
  • A large swelling (over 4 inches) of the arm or leg can follow the 4th or 5th dose of DTaP. This occurs in 5% of children. Most children can still move the leg or arm normally. The swelling resolves without treatment by day 3 to day 7. This is not an allergy and future DTaP vaccines can be given.
  • Painless lump at the injection site 1 or 2 weeks later. The lump is harmless and will disappear in about 2 months. Call your provider within 24 hours if it turns red or is tender.

CALL YOUR PROVIDER IMMEDIATELY IF the following rare but serious reactions occur:

  • fever over 104°F, or 40.0°C (0.4%)
  • crying for more than 3 hours (1%)
  • high-pitched, unusual cry (0.1%)
  • seizures (very rare)
  • fainting, clammy skin, dizziness, and weak or irregular pulse (very rare)
  • any other unusual reaction.

Measles, Mumps, Rubella (MMR)

These reactions may begin 5 to 12 days after getting the vaccine:

  • Fever of 103°F (39.5°C) or more (10%). Give your child ibuprofen or acetaminophen if the fever is over 102°F (38.9°C). Call your provider within 24 hours if the fever lasts over 72 hours or is over 104°F (40°C).
  • A mild pink rash mainly on the body (5%) may occur 1 to 6 weeks after getting the MMR. No treatment is necessary. The rash will last 2 to 3 days. Call your provider immediately if the rash changes to purple spots. Call within 24 hours if the rash becomes itchy or the rash lasts more than 3 days.
  • Three to four weeks after the MMR, about 1 child in 7 may get swollen lymph glands, and 1 child in 100 may have pain or stiffness in the joints that can last from a few days to a few weeks.
  • In 1 in 30,000 to 1 in 40,000 cases, low blood platelet counts can lead to bruising and bleeding into the skin. The risk of this happening from the wild-type measles disease is much greater than the risk from the vaccine.

Polio Vaccine (IPV)

  • Sore injection site (rare). No treatment is necessary. Giving your child ibuprofen or acetaminophen and placing a cold, wet washcloth over the tender area may provide some relief.
  • Fever (1% to 4%). Give your child ibuprofen or acetaminophen if the fever is over 102°F (38.9°C).

Pneumococcal Conjugate Vaccine (PCV)

  • Fever, usually, mild (10%). Give your child ibuprofen or acetaminophen if the fever is over 102°F (38.9°C).
  • Redness, tenderness, or swelling at the shot site (30%). Giving your child ibuprofen or acetaminophen and placing a cold, wet washcloth over the tender area may provide some relief.

Haemophilus Influenza Type B Vaccine (HIB)

  • Sore injection site (up to 25%) or mild fever (5%). Giving your child ibuprofen or acetaminophen and placing a cold, wet washcloth over the tender area may provide some relief.

Hepatitis B Vaccine (Hep B)

  • Sore injection site (3% to 29%). Giving your child ibuprofen or acetaminophen and placing a cold, wet washcloth over the tender area may provide some relief.
  • Fever (up to 7%). Give your child ibuprofen or acetaminophen if the fever is over 102°F (38.9°C).

Chickenpox Vaccine (VAR)

  • Never give your child aspirin for any symptom within 6 weeks of receiving the vaccine. (Reye's syndrome has been linked with the use of aspirin to treat fever or pain caused by a virus.) For fever or pain, give ibuprofen or acetaminophen.
  • The chickenpox vaccine may cause pain or swelling at the injection site for 1 to 2 days (20%).
  • Some children (15%) may have a fever that begins 2 to 4 weeks after the vaccination and lasts 1 to 3 days. Give your child ibuprofen or acetaminophen if the fever is over 102°F (38.9°C).
  • A few children (3%) develop a mild rash at the injection site or elsewhere on the body. The rash begins 5 to 26 days after the vaccine, looks like a few (2 to 10) chickenpox sores, and usually lasts a few days.

Children with these rashes can go to day care or school. If the vaccine rash contains fluid, cover it with clothing or a Band-Aid. Avoid school if there are widespread, weepy sores (because this may be real chickenpox).

Hepatitis A Virus (HAV) Vaccine

  • Sore injection shot site (20% to 50%). Giving your child ibuprofen or acetaminophen and placing a cold, wet washcloth over the tender area may provide some relief.
  • Headache or fatigue (less than 10%).

Influenza Virus Vaccine (Injection)

  • Pain, tenderness, or swelling at the injection site within 6 to 8 hours (10%). Giving your child ibuprofen or acetaminophen and placing a cold, wet washcloth over the tender area may provide some relief.
  • Fever of 101°F to 103°F, or 38.3°C to 39.5°C (18%). Fevers mainly occur in young children. Give your child acetaminophen or ibuprofen for fever over 102°F (38.9°C).

Influenza Virus Vaccine (Intranasal)

Some children who get the nasal spray form of the flu vaccine will have symptoms such as:

  • a runny nose, congestion, and cough
  • headache or muscle aches
  • a stomach ache, and sometimes vomiting or diarrhea
  • fever. Give your child acetaminophen or ibuprofen for fever over 102°F (38.9°C).

These symptoms do not last long and go away on their own.

Meningococcal Conjugate Vaccine (MCV)

  • Pain, soreness at the vaccination site (60%). Giving your child ibuprofen or acetaminophen and placing a cold, wet washcloth over the tender area may provide some relief.
  • Fever (4%) and headache (40%)
  • Painful joints (15-20%)
  • Decrease in appetite (10%)
  • Guillain-Barré syndrome is a very rare but serious side effect. The vaccine never causes meningitis.

Human Papillomavirus Virus Vaccine (HPV)

  • Pain at the injection site (85 to 90%)
  • Redness and swelling (25 to 45%)

Fainting is very rare after receiving a vaccine. Anyone receiving a vaccine should be observed for 15 minutes after the shot.

  • Immunisation from an early age helps protect your child against serious childhood infections.
  • The Immunisation Schedule Victoria outlines the vaccines your child needs and the age at which each vaccine should be given.
  • Some groups are more at risk than others in the community and may need extra vaccines.
  • Stay in the clinic with your child for at least 15 minutes after their immunisation to be sure there are no immediate side effects.
  • Serious side effects or allergic reactions to the vaccines are rare.

COVID-19 vaccines: For information about COVID-19 vaccines please go to the Victorian Government's coronavirus (COVID-19) website .

About immunisation

Immunisation from an early age is highly recommended for all Australian children. Having your child immunised helps to protect them from the most serious childhood infections, some of which may threaten their lives.

Routine childhood immunisations help to protect your child against:

Aboriginal and Torres Strait Islander infants are also protected against meningococcal B disease.

The National Immunisation Program provides the routine childhood immunisations recommended for all children in Australia, free of charge. Some groups are more at risk than others in the community and may need extra vaccinations. The Victorian government funds some extra vaccines from time to time.

See your doctor or local health clinic to have your child immunised. All Victorian local councils provide immunisation sessions.

Immunisation and young children

In the first months of life, a baby might have some protection from infectious diseases that their mother has had or been immunised against. This is known as passive immunity. It occurs when antibodies are transferred from mother to baby during pregnancy. The level of antibody protection for the baby can be low and wears off quickly. This puts them at risk of diseases that can be prevented with vaccination.

Most childhood immunisations are given as an injection in the arm or leg, except rotavirus vaccine, which is given by mouth. A vaccination dose may contain a vaccine against one specific disease, or several diseases. This is known as a combination injection, and it helps to reduce the number of injections your child needs.

Immunisation schedule for Victorian babies and young children

The Victorian immunisation schedule outlines the vaccines that are routinely provided free of charge to all Victorian children under the National Immunisation Program and the Victorian funded program. It also outlines the age at which each vaccination should be given. New vaccines against serious infections continue to be developed and the schedule might be updated in the future.

Age

Disease

Vaccine brand ®

Common reactions

Birth

Hepatitis B

H-B-VaxII Paediatric or Engerix Paediatric

Mild temperature, pain at the injection site

2 months (from 6 weeks)

Diphtheria, tetanus, pertussis, hepatitis B, polio, Haemophilus influenzae type b (Hib)

Infanrixhexa

Mild temperature, pain at the injection site, drowsiness, irritability/crying

Pneumococcal

Prevenar 13

Mild temperature, pain at the injection site

Rotavirus

Rotarix

Mild temperature

Meningococcal B
(Aboriginal and Torres Strait Islander infants only)
Bexsero Fever needing paracetamol

4 months

Diphtheria, tetanus, pertussis, hepatitis B, polio, Haemophilus influenzae type b (Hib)

Infanrixhexa

Mild temperature, pain at the injection site, drowsiness, irritability/crying

Pneumococcal

Prevenar 13

Mild temperature, pain at the injection site

Rotavirus

Rotarix

Mild temperature

Meningococcal B
(Aboriginal and Torres Strait Islander infants only)
Bexsero Fever needing paracetamol

6 months

Diphtheria, tetanus, pertussis, hepatitis B, polio, Haemophilus influenzae type b (Hib)

Infanrixhexa

Mild temperature, pain at the injection site, drowsiness, irritability/crying

12 months

Measles, mumps, rubella (MMR)

M-M-R II/Priorix

About 7 to 10 days after vaccination: fever (can be over 39°C), faint red non-infectious rash, drowsiness, runny nose, cough or puffy eyes, swollen salivary glands

Very rarely a low platelet count causing bleeding and bruising

Meningococcal ACWY

Nimenrix

Mild temperature, loss of appetite, irritability/crying pain at the injection site

Pneumococcal

Prevenar 13

Mild temperature, pain at the injection site

Meningococcal B
(Aboriginal and Torres Strait Islander infants only)
Bexsero Fever needing paracetamol

18 months

Measles, mumps, rubella, varicella (chickenpox) (MMRV)

Priorix-Tetra or ProQuad

About 7 to 10 days after vaccination: fever (can be over 39 °C), faint red non-infectious rash, drowsiness, runny nose, cough or puffy eyes, swollen salivary glands
About five to 26 days after vaccination: mild rash like chickenpox

Diphtheria, tetanus, pertussis

Infanrix or Tripacel

Mild temperature, irritability/crying, drowsiness

Haemophilus influenzae type b (Hib)

ActHib

Mild temperature, irritability/crying, pain at the injection site

4 years

Diphtheria, tetanus, pertussis (whooping cough), polio

Infanrix IPV or Quadracel

Mild temperature, irritability/crying, drowsiness

6 months of age to less than 5 years of age

Annual influenza

Influenza vaccine

Fever, feeling unwell, muscle aches, injection site pain, redness and swelling

Additional vaccines are given to children with certain medical risk conditions that put them at increased risk of complications from vaccine preventable diseases, such as:

  • babies that are born prematurely or low birth weight
  • children with chronic medical risk conditions.

Talk with your doctor to see if your child should get extra vaccines.

Immunising your child is important

There are immunisation requirements that your child needs to meet in order to go to childcare, kindergarten and primary school in Victoria. By law, your child’s immunisations must be up to date before they start childcare and kindergarten.

The Australian Immunisation Register (Tel. 1800 653 809) will provide you with information on how to get your child's Immunisation History Statement (a record of their immunisation status) on request or you can download it from your myGov account.

In Victoria, parents/guardians of children attending a childcare or kindergarten service are required to provide an updated Immunisation History Statement to the service if the child has a new vaccine(s). This ensures that the service always has current information about the child’s immunisation status.

Parents who immunise their children at the appropriate age may be eligible for Australian Government family assistance payments. For more information, visit the Services Australia website or visit a Centrelink or Medicare Service Centre .

Preparing for your child's immunisation

When you take your child for each vaccination, it important to take your child's My Health and Development Record (the green book) or your child's health record booklet, so that the doctor, nurse or health worker can record your child's visit. These records are an important reminder of when your child's next immunisations are due and which children in the family are immunised.

There is also the option of setting up an eHealth record for your child and downloading the My Child's eHealth Record app .

Pre-immunisation checklist

Before the immunisation, you need to tell the doctor or nurse if your child:

  • is unwell (temperature over 38.5 °C)
  • has had a severe reaction following any vaccine
  • has any severe allergies to any other medication or substances
  • has had any vaccine in the past month
  • has had an injection of immunoglobulin or received any blood products or a whole blood transfusion within the past year
  • was a pre-term infant born less than 32 weeks gestation, or weighing less than 2000 g at birth
  • as a baby, has had an intussusception (a blockage caused by one portion of the bowel sliding into the next piece of bowel like the pieces of a telescope)
  • has a chronic illness
  • has a bleeding disorder
  • does not have a functioning spleen
  • lives with someone with a disease or who is having treatment that causes lower immunity – examples include leukaemia, cancer or human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome (AIDS), oral steroid medications, radiotherapy or chemotherapy
  • is an infant of a mother who was receiving highly immunosuppressive therapy – for example, biological disease modifying anti-rheumatic drugs (bDMARDs) – during pregnancy
  • has a disease which lowers immunity (such as leukaemia, cancer, HIV or AIDS) or is having treatment that causes low immunity (such as oral steroid medication, radiotherapy or chemotherapy)
  • identifies as an Aboriginal and Torres Strait Islander person.

Immunisations are effective and safe, although all medication can have unwanted side effects. Some children may experience a reaction to a vaccine. In virtually all cases, immunisation side effects are not as serious as the symptoms a child would experience if they were to contract the disease.

The mild side effects can include a mild fever and pain at the injection site. For specific information about side effects from different doses of vaccine, ask your doctor or healthcare professional.

The meningococcal B vaccine, Bexsero, commonly causes a fever in children aged less than 2 years. Paracetamol must be given in the 30 minutes before vaccination or as soon as practicable after vaccination for children less than 2 years. This should be followed by 2 more doses given 6 hours apart regardless of whether the child has a fever.

Managing fever after immunisation

Common side effects following immunisation are usually mild and temporary (occurring one to 2 days after vaccination). Specific treatment is not usually required.

There are a number of treatment options that can reduce the side effects of the vaccine including:

  • giving extra fluids to drink and not overdressing if there is a fever
  • although routine use of paracetamol after vaccination is not recommended, if pain or fever is present, or baby is crying and unsettled paracetamol can be given – check the label for the correct dose or speak with your pharmacist (especially when giving paracetamol to children).

Managing injection site reactions

Many vaccine injections may result in soreness, redness, itching, swelling or a burning feeling at the injection site for one to 2 days. Paracetamol and a cool compress on the site might be required to ease the discomfort.

If a side effect following immunisation is unexpected, persistent or severe or if you are worried about yourself or your child's condition after a vaccination, see your doctor or immunisation nurse as soon as possible or go directly to a hospital. Immunisation side effects may be reported to SAEFVIC , the Victorian vaccine safety service (Tel. 1300 882 924 and select option 1).

You can discuss with your immunisation provider how to report adverse events in other states or territories.
It is important to seek medical advice if you (or your child) are unwell, as this may be due to other illness rather than because of the vaccination.

There is a very small risk of a serious allergic reaction (anaphylaxis) to any vaccine. This is why you are advised to stay at the clinic or medical surgery for at least 15 minutes following immunisation in case further treatment is required.

If your child misses an immunisation

To fully protect your child, it is best to immunise your child at the recommended age. If you have fallen behind or missed a vaccine, the vaccine schedule can be safely continued as if there had been no delay. Ask your doctor or immunisation provider about catch-up doses of vaccine.

There is no need to repeat doses already received before having catch-up doses.

Immunisation and HALO

The immunisations you may need are decided by your health, age, lifestyle and occupation. Together, these factors are referred to as HALO.

Talk to your doctor or immunisation provider if you think you or someone in your care has health, age, lifestyle or occupation factors that could mean immunisation is necessary. You can check your immunisation HALO using the Immunisation for Life infographic.

Where to get help

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