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Cold vs. Flu: How to Tell the Difference

Is it just a sniffle or the full-blown flu? Learn the key differences in symptoms, onset, and severity to choose the right treatment.

20 May 2024

The Quick Check

The main difference between a cold and the flu is the speed of onset and the severity.

Symptom Comparison

SymptomColdFlu (Influenza)
FeverRare (or mild)Common (often high, >38°C)
HeadacheRareCommon
Aches & PainsSlightSevere
FatigueMildSevere (can last weeks)
SneezingCommonSometimes
Sore ThroatCommonSometimes

Treatment Options

For a Cold

Since colds are viral, antibiotics won't work. Focus on symptom relief:

For the Flu

The flu is also viral, but because it's more severe, you need to be more aggressive with rest:

⚠️When to See a Doctor

Seek medical attention if you have:

  • Difficulty breathing or shortness of breath
  • Persistent pain or pressure in the chest
  • Persistent dizziness or confusion
  • Severe vomiting
  • Flu-like symptoms that improve but then return with fever and worse cough