When Is a Fever Serious? A Guide for Adults and Kids
A fever can be scary, especially when it’s your child who’s burning up at midnight. The good news is that most fevers are a normal sign the body is fighting an infection. They usually go away on their own in a few days.
Still, some fevers do need medical attention. Here’s how to tell the difference.
What Counts as a Fever?
A normal body temperature is around 98.6°F (37°C), though it varies a little from person to person and throughout the day. A temperature of 100.4°F (38°C) or higher is generally considered a fever.
For the most accurate reading, use a digital thermometer. For babies and young children, a rectal temperature is the most reliable.
When to Get Care for a Baby or Child
Children handle fevers differently than adults. How a child looks and acts often matters more than the exact number. Get medical care if:
- Your baby is under 3 months old and has a temperature of 100.4°F (38°C) or higher. Call your pediatrician or go to the ER right away.
- Your baby is 3 to 6 months old with a temperature of 102°F (38.9°C) or higher
- Your child of any age has a fever that lasts more than 2 to 3 days
- Your child seems very sleepy, unusually fussy, or won’t drink fluids
- Your child has signs of dehydration, like a dry mouth, no tears, or far fewer wet diapers
- The fever comes with ear pain, a sore throat, a rash, or pain when peeing
When to Get Care as an Adult
For adults, see a provider if:
- Your temperature is 103°F (39.4°C) or higher
- A fever lasts more than 3 days
- You have a fever along with a bad sore throat, ear pain, sinus pain, or a cough that won’t quit
- You have pain or burning when you pee
- You have a weakened immune system or a long-term health condition
Warning Signs That Need the ER
Call 911 or go to the ER if a fever comes with any of these:
- Trouble breathing
- A stiff neck or severe headache
- Confusion or trouble staying awake
- A seizure
- A rash that looks like tiny bruises or doesn’t fade when you press on it
- Chest pain
- A temperature of 104°F (40°C) or higher that doesn’t come down with medicine
How to Care for a Fever at Home
For mild fevers, these steps can help you or your child feel better:
- Drink plenty of fluids, like water, broth, or electrolyte drinks
- Rest as much as possible
- Dress in light clothing and use a light blanket
- Use fever reducers like acetaminophen or ibuprofen as directed on the label. Never give aspirin to children or teens.
The goal of treating a fever isn’t to bring the number back to normal. It’s to help the person feel comfortable enough to rest and drink fluids.
Get Checked at Miracle Touch Urgent Care in Hollywood
If a fever has you worried, our team can find the cause and recommend the right treatment for you or your child.
Call us at (323) 673-7200 or walk in today.
This article is for general information and isn’t a substitute for medical advice. In an emergency, call 911.