Flu or Common Cold? How to Tell the Difference

Flu and the common cold share some symptoms, which makes them easy to confuse — but they're caused by different viruses and can vary a lot in severity. Knowing the general differences can help you decide how urgently you need to be seen.

How the common cold usually presents

Colds tend to come on gradually. Common symptoms include a runny or blocked nose, sneezing, a mild sore throat, and a light cough. Energy levels are often only mildly affected, and most colds improve within a week with rest and fluids.

How flu usually presents

Flu symptoms tend to appear suddenly and hit harder. Look out for a high fever, chills, body aches, fatigue that makes daily activity difficult, and a dry cough. Flu can also come with headaches and, in some cases, digestive symptoms.

Key differences at a glance

• Onset: Colds develop gradually; flu tends to start suddenly
• Fever: Uncommon or mild with colds; often high with flu
• Body aches: Mild with colds; can be significant with flu
• Fatigue: Mild with colds; can be severe with flu

When to book a consultation

• Fever lasts more than a few days or is very high
• Symptoms are worsening instead of improving after a week
• You have shortness of breath or chest pain
• You have an existing chronic condition and are unwell
• You're caring for a young child, elderly family member, or pregnant patient with these symptoms

When in doubt, it's always worth a call. The team at Amla Med can help you decide whether you need to come in or whether home care is enough for now.