What to Do If You Think You Have Measles
September 4, 2025
If you or your child begin to show symptoms of measles, acting quickly—and correctly—can prevent the virus from spreading further.
Recognizing Symptoms
Measles symptoms usually appear in two stages:
- Stage 1 (7–14 days after exposure): Fever, cough, runny nose, red eyes, and fatigue.
- Stage 2: A red, blotchy rash begins on the face and spreads downward. White spots inside the mouth (Koplik spots) are another indicator.
If You Suspect Measles
Do not walk into a clinic or emergency department without calling first. Measles is airborne, and exposing others in a waiting room or hallway could lead to additional infections. Instead:
- Isolate the individual
- Call your healthcare provider
- Follow their instructions for next steps, which may include testing or home monitoring
Why Isolation Is Critical
The measles virus can remain infectious in the air for up to two hours after an infected person leaves. Quick action helps limit the spread and protects those around you, especially in healthcare settings, daycares, and schools.
Sources:
Centers for Disease Control and Prevention. (2023). Signs and symptoms of measles. https://www.cdc.gov/measles/about/signs-symptoms.html