Common Cold and Flu
The common cold and the flu (influenza) are very common illnesses that affect the nose,
throat, and lungs. Most people experience them several times in their lives. Although they
may seem similar, they are not exactly the same.
Both are caused by viruses, not bacteria. This is important because antibiotics do not work
against viruses.
What Is The Common Cold and Flu?
The common cold is a mild viral infection. It mainly affects the nose and throat. There are
many different cold viruses, which is why people can catch colds multiple times a year.
Common Cold Symptoms:
• Runny or blocked nose
• Sneezing
• Mild sore throat
• Mild cough
• Mild headache
• Low-grade fever (sometimes)
• Feeling slightly tired
Colds usually develop slowly and improve within 7 to 10 days.
What Is The Flu?
The flu is caused by the influenza virus. It is usually more severe than the common cold and
can make a person feel very sick.
Flu Symptoms:
• High fever
• Body aches and muscle pain
• Severe tiredness
• Headache
• Dry cough
• Sore throat
• Chills and sweating
• Loss of appetite
Flu symptoms usually appear suddenly. A person may feel fine in the morning and very sick
by evening.
How Do Cold and Flu Spread?
Both spread easily from person to person through:
• Coughing
• Sneezing
• Talking
• Touching contaminated surfaces
If someone with a cold or flu coughs into their hand and then touches a door handle, the virus
can spread to others who touch the same surface.
That’s why hand hygiene is very important.
Who Is At Higher Risk?
Most healthy adults recover without problems. However, some people are at higher risk of
complications:
• Elderly people
• Young children
• Pregnant women
• People with asthma or lung disease
• People with diabetes or heart disease
• Those with weak immune systems
In these groups, the flu can sometimes lead to serious problems like pneumonia.
How Are They Treated?
There is no cure for the common cold. Treatment focuses on relieving symptoms while the
body fights the virus.
Helpful steps include:
• Getting plenty of rest
• Drinking lots of fluids
• Taking paracetamol (acetaminophen) or ibuprofen for fever and body
aches
• Using saline nasal sprays for congestion
• Warm soups and teas for comfort
For flu, treatment is similar. In some cases, doctors may prescribe antiviral medication if
started early, especially for high-risk patients.
Important:
Antibiotics do not treat colds or flu unless there is a bacterial complication
When Should You See A Doctor?
Most colds and flu improve on their own. However, seek medical help if you experience:
• Difficulty breathing
• Chest pain
• Very high fever that does not improve
• Confusion
• Severe weakness
• Symptoms lasting more than 10–14 days
• Worsening symptoms after initial improvement
Children and elderly patients should be monitored carefully.
How To Prevent Cold And Flu?
Prevention is always better than treatment.
Here are simple ways to reduce your risk:
• Wash hands frequently with soap
• Avoid touching your face
• Cover your mouth when coughing or sneezing
• Avoid close contact with sick people
• Clean frequently touched surfaces
• Stay home when sick
Flu Vaccine
The flu vaccine is available yearly. It is especially recommended for:
• Elderly individuals
• Pregnant women
• People with chronic diseases
• Healthcare workers
The vaccine reduces the risk of severe illness and complications
Common Myths
• “Cold weather causes colds.”
Cold weather itself does not cause illness. Viruses cause colds. However, people
spend more time indoors in winter, which helps viruses spread.
• “If mucus is yellow, you need antibiotics.”
Not always. Color change does not automatically mean bacterial infection.
Final Thoughts
The common cold is usually mild and short-lasting. The flu is more serious and can lead to
complications, especially in vulnerable groups.
Most people recover with rest, fluids, and basic care. Prevention through hygiene and
vaccination is very effective.
Taking simple precautions can protect not only you but also those around you.
At Airside Medical Centre, our GP team in Swords, North Dublin is here to provide care, advice, and treatment—even out of hours.
Find us at Airside Medical Centre, 1st Floor Medical Suite, Link Road, Holywell, Swords, Dublin. 
Call us or book online