Emergency symptoms
Flu is a progressive respiratory illness. This means that the signs and symptoms will get worse before they get better. Not everyone with flu responds the same. Your overall health and immune response will decide how severe your symptoms might be.
- Seek urgent medical attention if you have the following symptoms:
- Breathing difficulties
- Chest pain
- Bluish skin and lips
- Dizziness and confusion
- Severe dehydration
- Worsening cough
- Recurring or high-grade fever that’s not responding to OTC fever reducers
Difference Between Cold And Flu Symptoms | ||
Flu Symptoms | Cold Symptoms | |
Incubation period | 1 to 2 days | 2 to 3 days |
Fever | Common, usually lasts 3 to 4 days | Uncommon |
Chills | Common | Uncommon |
Cough | Common, often severe | Common, mild to moderate |
Sneezing and congestion | Common | Occasionally |
Sore throat | Common | Occasionally |
Fatigue | Common, often severe | Occasionally, mild to moderate |