Skip to content
My WebMD Sign In, Sign Up

Children's Vaccines Health Center

Font Size

Immunizations - When to Call a Doctor

Call 911 or other emergency services if you or your child develops any of the following symptoms:

  • An allergic reaction, such as difficulty breathing, wheezing, hives, hoarseness, paleness, weakness, a fast heart rate, or dizziness.
  • Behavior changes, such as passing out (losing consciousness), acting confused, being very sleepy or hard to wake up, or not responding to being touched or talked to.
  • A seizure.

Call your doctor if:

Recommended Related to Children's Vaccines

Rotavirus (RV) Vaccine

Rotavirus gets its name from the fact that, under a microscope, the virus resembles a wheel. And you could say, like you might say about a wheel, rotavirus goes round and round. This nasty, potentially lethal bug causes severe acute gastroenteritis with diarrhea and vomiting, primarily in infants and young children. Fortunately, there are two rotavirus vaccines that can protect children from this disease.

Read the Rotavirus (RV) Vaccine article > >

  • Redness and swelling at the site of the shot (injection) last longer than 48 hours.
  • Your child is 3 months of age or younger and has a fever of 100.4°F (38°C) or higher.
  • A fever lasts longer than 48 hours after receiving a shot.
  • Any unusual reaction occurs.

If a fever develops after an immunization and you need to find out if you should call your doctor, see:

Talk with your doctor about whether you need special immunizations because you:

  • Are in close contact with people who have an infectious disease.
  • Have planned international travel, especially to developing countries.
  • Live with or visit a pregnant woman or baby.
  • Live with someone who has an impaired immune system.
1

WebMD Medical Reference from Healthwise

Last Updated: May 01, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
Next Article:

Today on WebMD

Baby getting vaccinated
Vaccines and Autism
syringes and graph illustration
What Shots Does Your Child Need?
 
baby getting a vaccine
Vaccine Guide for Parents
nurse holding syringe in front of girl
HPV Vaccine
 

What To Know About The HPV Vaccine
Article
24 Kid Illnesses Parents Should Know
Slideshow
 
Nausea and Vomiting Remedies Slideshow
Article
Managing Immunization Schedules For Kids
Video
 

Doctor administering vaccine to toddler
Video
gloved hand holding syringe
Article
 
infant receiving injection
Tool
pills
Quiz
 

WebMD Special Sections