At Shire Family Medical, your Sutherland GP practice, cold and flu symptoms are among the most common reasons adult patients book an appointment, especially through the autumn and winter months.
A cough that will not settle, a fever that keeps returning, or a sore throat that feels worse than a “normal” cold can leave you wondering whether to rest it out at home, book a routine appointment, or ask for something more urgent. The symptoms of a cold and the flu overlap enough that it is not always obvious which one you have, and that uncertainty is often what brings people in.
Shire Family Medical, a GP medical centre at 154 Flora Street, Sutherland, sees adult patients with cold and flu symptoms year-round through a dedicated priority clinic. This article explains how a cold and the flu typically differ, how long symptoms usually last, and the signs that mean it is worth seeing a GP rather than waiting it out.
Cold and Flu Symptoms Are One of the Most Common Reasons Adults See a GP
Most adults get at least one cold or flu-like illness every year, and for otherwise healthy people, most of these illnesses are mild and improve on their own within a week or two.
The difficulty is that early cold and flu symptoms can look almost identical: a sore throat, a runny or blocked nose, a cough, tiredness. It is often only after a day or two, once the fuller pattern of symptoms is clear, that the difference between the two becomes easier to tell.
What Is the Difference Between a Cold and the Flu?
A cold and the flu are both respiratory illnesses caused by viruses, but the flu tends to come on more suddenly and cause more severe symptoms than a cold.
According to healthdirect Australia, the common cold can be caused by more than 200 different viruses, while influenza (the flu) is caused specifically by the influenza virus and has the potential to become more severe, particularly in older adults, pregnant women, and people with certain medical conditions.
- Onset: Colds usually develop gradually over a day or two. Flu symptoms often come on suddenly, sometimes within hours.
- Fever: Uncommon or mild with a cold. Common and often higher with the flu.
- Body aches: Mild, if present, with a cold. Often significant with the flu.
- Fatigue: Mild with a cold. Can be pronounced and prolonged with the flu.
- Sneezing and congestion: A hallmark of a cold. Less prominent with the flu.
- Cough: Mild to moderate with a cold. Can be dry and more severe with the flu.
- Headache: Uncommon with a cold. Common with the flu.
If your symptoms came on quickly, feel more intense than a typical cold, or include a high fever and significant body aches, the flu is more likely. If in doubt, your GP can help confirm what you are dealing with and whether testing is appropriate.
How Long Do Cold and Flu Symptoms Usually Last?
A common cold typically improves within about a week to ten days, while flu symptoms often last a similar length of time but with fatigue and a lingering cough that can take several weeks longer to fully clear.
These are general timeframes rather than fixed rules. Some people recover faster, and others, particularly those with an underlying health condition or a weakened immune system, take longer. Symptoms that are still getting worse after the first week, rather than gradually improving, are one of the clearer signs that it is worth checking in with a GP rather than continuing to wait.
When Cold or Flu Symptoms Need a GP Review
Cold and flu symptoms need GP review when they are severe, are not improving after a week to ten days, or are affecting a person with a higher risk of complications.
It is worth booking an appointment if you have:
- A fever that lasts more than three to four days, or keeps returning after settling
- Symptoms that are getting worse instead of improving after the first week
- A cough that is not settling after two to three weeks
- Chest tightness, pain, or discomfort when breathing or coughing
- Significant fatigue that is not improving alongside other symptoms
- A sore throat severe enough to make swallowing fluids difficult
- An existing health condition such as asthma, diabetes, heart disease, or a weakened immune system
- You are pregnant, aged 65 or over, or caring for a young baby
People in these higher-risk groups may develop complications from what would otherwise be a routine illness, so it is generally worth being seen sooner rather than later. Shire Family Medical’s Unwell Clinic provides dedicated priority appointments for patients with cold and flu symptoms, allowing you to be assessed promptly.
When to Seek Urgent Care
Some symptoms alongside a cold or flu need urgent medical attention: call 000 or attend the nearest emergency department rather than waiting for a GP appointment.
Seek urgent care if you experience:
- Difficulty breathing, or breathlessness that is getting worse
- Chest pain or pressure
- Confusion, drowsiness, or difficulty staying awake
- Blue or grey lips, face, or fingertips
- Coughing up blood
- Signs of dehydration, such as very little urine, dizziness, or an inability to keep fluids down
- A high fever that does not respond to paracetamol or ibuprofen
- Symptoms that seem to improve, then suddenly return worse than before
If you are unsure whether your symptoms are urgent, the healthdirect helpline (1800 022 222) connects you with a registered nurse 24 hours a day for advice.
What Happens at an Unwell Clinic Appointment
An Unwell Clinic appointment is a dedicated, priority consultation for patients with cold or flu-like symptoms, designed to assess you promptly while protecting other patients through additional infection control measures.
Your GP will examine you, ask about how your symptoms have progressed, and discuss appropriate management. They may arrange testing, such as a throat or nasal swab, if clinically indicated. Booking and arrival work a little differently to a standard appointment, so it is worth checking the Unwell Clinic page for current booking steps before you call, and the Fees & Billing page for any consultation or testing charges that may apply.
Does the Flu Vaccine Help Prevent This?
An annual flu vaccine can reduce your chances of catching influenza, and may also reduce the severity of symptoms if you do catch it, though no vaccine offers complete protection.
The flu vaccine does not protect against the common cold, which is caused by different viruses entirely. If you would like to know more about this year’s flu vaccine, including who is eligible for a free dose, our guide to adult vaccinations covers eligibility and timing, and Shire Family Medical’s Adult & Booster Vaccinations service can arrange your vaccination.
Home Care for Cold and Flu Symptoms
Most cold and flu symptoms in otherwise healthy adults can be managed at home with rest, fluids, and simple symptom relief while your body fights off the infection.
Helpful steps include:
- Resting as much as possible, particularly in the first few days
- Drinking plenty of fluids to stay hydrated
- Using paracetamol or ibuprofen as directed for fever, aches, or discomfort
- Gargling salt water or using lozenges for a sore throat
- Using a humidifier or steam inhalation to ease congestion
- Avoiding smoking or vaping, which can worsen a cough
- Staying home from work while you are contagious, to protect colleagues and vulnerable family members
Antibiotics do not treat colds or the flu, since both are caused by viruses rather than bacteria. Your GP will only recommend antibiotics if a separate bacterial infection, such as a secondary chest or sinus infection, is suspected.
What to Tell Your GP
Having a few details ready before your appointment can help your GP assess you more efficiently.
Useful information includes:
- When your symptoms started, and how they have changed since
- Your highest recorded temperature, if you have been monitoring it
- Whether you have any breathing difficulty, chest pain, or persistent vomiting
- Any existing medical conditions, medications, or allergies
- Whether you are pregnant, or caring for a young baby at home
- Any known exposure to flu, COVID-19, or other contagious illness
- Whether your flu vaccine is up to date this year
Knowing When to Act
Cold and flu symptoms are common, and most cases in healthy adults settle with rest and time. What matters most is how your symptoms are tracking: whether you are gradually improving, staying the same, or getting worse, and whether you fall into a higher-risk group that warrants earlier review.
If your symptoms are severe, not improving after a week to ten days, or you are in a higher-risk group, it is worth being seen. For sudden, severe symptoms such as breathing difficulty or chest pain, seek urgent care immediately.
For adults in Sutherland and across the Sutherland Shire with cold or flu symptoms, book an Unwell Clinic appointment → for priority GP assessment.
Frequently Asked Questions
What is the difference between a cold and the flu?
A cold usually develops gradually and causes mild symptoms such as sneezing, a runny nose, and a sore throat, with little or no fever. The flu tends to come on suddenly and cause more severe symptoms, including a higher fever, body aches, and significant fatigue. Both are caused by viruses, but the flu has a greater potential to become severe, particularly in older adults and people with certain health conditions.
How long does a cold usually last?
A common cold typically improves within about a week to ten days for most healthy adults. Symptoms such as a runny nose and sore throat are usually most intense in the first two to three days before gradually settling. A cough can sometimes linger for a further one to two weeks after other symptoms have resolved.
How long does the flu usually last?
Flu symptoms generally last around a week, though fatigue and a lingering cough can persist for two to three weeks in some people. Recovery time varies depending on age, overall health, and whether any complications develop. Symptoms that continue to worsen after the first week, rather than gradually improving, are worth having reviewed by a GP.
When should an adult see a GP for cold or flu symptoms?
An adult should see a GP if a fever lasts more than three to four days, symptoms worsen after the first week instead of improving, a cough persists beyond two to three weeks, or breathing feels difficult. People who are pregnant, aged 65 or over, or living with a condition such as asthma, diabetes or heart disease should generally be seen sooner, as they have a higher risk of complications.
Can you have a cold and the flu at the same time?
It is possible, though uncommon, to be infected with more than one respiratory virus at once, which can make symptoms feel more severe or confusing than a single illness would. If your symptoms do not fit a typical pattern, or feel unusually severe, a GP can help assess what is causing them rather than guessing between the two.
Do you need antibiotics for a cold or the flu?
No. Antibiotics treat bacterial infections and have no effect on the viruses that cause colds and the flu. A GP may prescribe antibiotics only if a separate bacterial complication develops, such as a secondary chest or sinus infection, which is assessed on an individual basis rather than assumed.
When should I go to hospital for flu symptoms?
Go to the nearest emergency department or call 000 if flu symptoms are accompanied by difficulty breathing, chest pain, blue or grey lips or face, confusion, coughing up blood, or a high fever that does not respond to paracetamol or ibuprofen. These symptoms need urgent assessment rather than a standard GP appointment.
Can I get a flu vaccine if I currently have a cold?
Speak with your GP before booking a flu vaccine if you currently have cold or flu symptoms, particularly a fever. Vaccination is generally deferred until you have recovered from an acute illness, though a mild cold without fever is not usually a reason to delay. Your GP can advise on the right timing for your situation.
This article provides general health information only. It is not a substitute for personalised medical advice and does not create a doctor-patient relationship. Any treatment, test, procedure or vaccination mentioned is for illustrative purposes only. Suitability depends on individual circumstances and assessment by a qualified health professional. Medical information can change; always speak with your GP about your specific symptoms, health history and care options. In an emergency, call 000.
About Shire Family Medical
Shire Family Medical is an AGPAL-accredited general practice in Sutherland, providing patient-centred GP care for individuals and families at every stage of life. Led by Dr Louis Traynor and registered nurse Rebel Traynor, the practice offers a broad range of general practice services at 154 Flora Street, Sutherland — conveniently located near Sutherland Station and serving the wider Sutherland Shire community. All doctors practising at Shire Family Medical are registered medical practitioners with the Australian Health Practitioner Regulation Agency (AHPRA).
Shire Family Medical publishes general health information across preventive care, women’s and men’s health, children’s health, travel health and chronic disease management. Articles are written to help patients make informed decisions about their health in partnership with their GP.