What types of reactions can a vaccine cause in child?

Vaccines can cause various types of reactions in children. Here are some common reactions:

Local reactions at the injection site:

- Pain, redness, or swelling at the injection site

- Itching or bruising around the area

Mild systemic reactions:

- Fever

- Chills

- Fatigue or sleepiness

- Headache

- Loss of appetite

- Nausea or vomiting

- Diarrhea

- Muscle or joint aches

Allergic reactions:

- Hives or skin rashes

- Swelling of the face, lips, tongue, or throat

- Difficulty breathing

- Wheezing

- Dizziness or fainting

- Anaphylaxis (a severe allergic reaction that requires immediate medical attention)

Some vaccines, like the MMR (Measles, Mumps, Rubella) vaccine, can cause a delayed reaction known as parotitis, which is characterized by swelling of the glands around the cheeks and jaws.

Vaccine reactions are usually mild and go away within a few days. Serious reactions are rare and occur in a very small number of cases. It's important to follow the recommended vaccine schedule and consult with a healthcare provider if your child experiences any concerning reactions after vaccination.