Age-based fever guidelines, symptom checker, and medication dosing calculator
⚠️ Medical Disclaimer: This information is provided for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your pediatrician or other qualified health provider with any questions you may have regarding your child's health. In case of emergency, call 911 or your local emergency services immediately.
Trust your instincts! If your baby seems very ill, lethargic, or you feel something is wrong—even if the fever is low—call your doctor. You know your child best.
When to Call the Doctor: Fever by Age
Under 3 months
Rectal temperature 100.4°F (38°C) or higher
Call doctor IMMEDIATELY or go to ER. Fever in young infants can indicate serious infection.
3-6 months
Rectal temperature 101°F (38.3°C) or higher
Call doctor same day. Monitor for other symptoms.
6 months - 2 years
Temperature 103°F (39.4°C) or higher, or any fever lasting more than 24 hours
Call doctor. Can treat fever at home if child is drinking, playing, and comfortable.
2+ years
Temperature 103°F (39.4°C) or higher, or fever lasting more than 3 days
Call doctor. Most fevers in this age group can be managed at home.
How to Take Temperature by Age
Under 3 months
Best Method:
Rectal (most accurate)
Avoid:
Forehead or ear thermometers (not accurate enough for this age)
3 months - 4 years
Best Method:
Rectal (most accurate)
Also Acceptable:
Armpit or forehead (less accurate but acceptable)
Avoid:
Ear thermometers (not accurate until age 6 months+)
4+ years
Best Method:
Oral (under tongue)
Also Acceptable:
Forehead, ear, or armpit
Avoid:
Nothing - all methods work well at this age
Interactive Symptom Checker
Select symptoms your child is experiencing to get possible conditions and care advice:
Medication Dosage Calculator
⚠️ Safety Warning: Always consult your pediatrician before giving any medication. This calculator provides general guidelines only. Never give aspirin to children under 18. Follow product labels carefully.
Emergency Warning Signs - Call 911
Seek immediate emergency medical care if your child has any of these symptoms:
Difficulty breathing or rapid breathing
Bluish lips or face
Severe headache or stiff neck
Seizures or convulsions
Unresponsive or very difficult to wake
Refusing to drink or signs of dehydration
Fever over 104°F (40°C) that won't come down
Rash with fever that looks like bruises
Severe abdominal pain
Acting extremely ill or you are very worried
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