What is usually the first symptom of the flu?

This blog is for educational purposes only and does not replace professional medical advice or diagnosis. If you have health concerns, consult an AHPRA-registered telehealth doctor or request a medical certificate online if clinically appropriate. Please note: Hola Health does not currently offer Mental Health Care Plans.

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Summary: The flu often begins with a sudden fever, followed by fatigue, body aches, and a sore throat. Recognizing early symptoms can help with timely treatment and prevent further spread

The flu, or influenza, is an infectious respiratory condition caused by the influenza virus. It may occur suddenly, and its symptoms usually appear within one to four days of exposure. According to recent data¹., Australia experienced a record-breaking influenza season with over 351,641 laboratory-confirmed cases, a sharp increase from last year’s 289,134 cases and surpassing the pre-pandemic peak of 313,454 cases in 2019. While flu symptoms differ from person to person, one common characteristic is the quick onset of the illness. Among the various symptoms of the flu, the first one that most individuals face is often a sudden onset of fever. However, there are other early indicators of the flu, and recognising them early can assist individuals in seeking treatment and preventing the spread of the virus.   

What are the early flu symptoms?

Early flu symptoms generally appear suddenly and may include: 

• High fever
• Fatigue
• Body ache
• Sore throat
• Cough
• Chills
• Headache
• Runny nose

These symptoms typically emerge abruptly and may intensify within a few hours, distinguishing the flu from a regular cold. 

What are emergency flu symptoms?

The flu is an illness that can progress over time, meaning symptoms might initially intensify before they begin to improve. Everyone’s response to the virus differs, and the severity of the symptoms may depend on overall health. 

Seek immediate medical attention if you have the following symptoms: 

• Breathing difficulties
• Cheat pain
• Dizziness
• Severe dehydration
• Recurring or high fever
• Bluish skin or lips
• Severe muscle pain
• Worsening cough
• Severe or persistent vomiting

These symptoms indicate serious complications or respiratory distress and should be addressed as immediate concerns.

Can you feel the flu coming on?

It’s common to sense the flu’s onset when early symptoms manifest. Many individuals report feeling fatigued, experiencing body pains, chills, and a mild sore throat before more evident symptoms arise. You might also notice an unusual level of tiredness, have a slight headache, or experience a sudden decrease in energy. As the flu advances, symptoms like fever, cough, congestion, and muscle aches typically intensify. Unlike a cold, which tends to develop gradually, flu symptoms generally appear suddenly and escalate quickly. Being aware of these initial warning signs can aid in ensuring you rest, remain hydrated, and take steps to avoid transmitting the virus. 

What should I do if I have early flu symptoms?

If you notice early symptoms of the flu, it’s crucial to take prompt action to manage your condition and stop it from getting worse. Plenty of rest can combat the virus effectively. Keep yourself hydrated by consuming lots of water, herbal teas, or clear broths to avoid dehydration. You can take over-the-counter medications such as acetaminophen or ibuprofen to alleviate fever, body soreness, and headaches. Nourish your body with healthy foods like soups, fruits, and vegetables to bolster your immune system. Refrain from close contact with others to reduce the risk of spreading the flu, and remember to wash your hands regularly. If your symptoms become more severe or if you belong to a high-risk category, seek advice from a doctor for further assistance. 

What not to do?

When you have the flu, there are certain things you should avoid to prevent worsening symptoms and spreading the virus. Do not ignore rest—pushing through fatigue can weaken your immune system and prolong recovery. Avoid dehydration by drinking plenty of fluids and steering clear of caffeinated or alcoholic drinks, which can make dehydration worse. Do not take antibiotics, as the flu is caused by a virus, not bacteria. Avoid close contact with others, especially high-risk individuals, to prevent spreading the illness. Do not overuse decongestants, as they can cause rebound congestion. If symptoms worsen or persist, seek medical advice. 

Can the flu be prevented? 

Yes, the flu can be prevented through several effective measures: 

• Get your flu shot: The yearly flu vaccination is the most effective method to lower the chance of infection and serious illness.  
• Maintain good hygiene: Wash your hands regularly with soap and water, and use a hand sanitiser when needed.  
• Steer clear of individuals who are sick: Avoid people who are coughing or sneezing to minimise exposure.  
• Bolster your immune system: Consume a nutritious diet, stay well-hydrated, exercise consistently, and ensure you get enough rest.  
• Cover your coughs and sneezes: Use a tissue or your elbow to stop the spread of germs. 
• Sanitise commonly touched surfaces: Clean doorknobs, phones, and countertops to decrease the transmission of viruses.

Useful tips to aid recovery from the flu

Here are some comprehensive suggestions to support your recovery from the flu: 

1. Prioritise rest: Getting adequate rest is crucial for your body to recuperate. Your immune system functions optimally when well-rested, so steer clear of strenuous tasks and aim for additional sleep. Be responsive to your body’s signals and allow yourself to nap when necessary.
2. Maintain hydration: Ensure you consume ample fluids such as water, herbal teas, and clear broths. Staying hydrated helps avert dehydration, eases a dry throat, and assists in thinning mucus for easier expulsion. Warm beverages can also offer relief from congestion.
3. Eat light: nutritious but light meals like soups, fruits, and vegetables supplies your body with vital vitamins and minerals, including vitamin C, to bolster your immune response. Bone broth is another excellent choice to comfort your stomach and deliver nutrients.
4. Consider over-the-counter remedies: Medications available without a prescription, such as acetaminophen or ibuprofen, can alleviate fever, body pain, and headaches. Be careful with decongestants, as they may lead to rebound congestion if used for extended periods.
5. Utilise a humidifier or steam: Dry air can irritate your throat and nasal passages. A humidifier introduces moisture to the air, which can alleviate congestion, ease coughing, and soothe irritated nasal tissues. Alternatively, you can inhale steam from a hot shower or a bowl of hot water.
6. Gargle with salt water: Gargling with warm salt water can help alleviate a sore throat, diminish inflammation,and clear mucus. Mix approximately half a teaspoon of salt in a glass of warm water and gargle several times daily.
7. Avoid smoking and alcohol consumption: Both smoking and alcohol can impair your immune function and extend the recovery period. Alcohol may lead to dehydration, and exacerbating symptoms, while smoking can irritate the respiratory tract and worsen cough and congestion.
8. Pay attention to your body: Allow yourself adequate time to fully recuperate before returning to work or engaging in rigorous physical activities. Straining yourself too soon can hinder your recovery and potentially exacerbate symptoms.

When to speak to a doctor?

If your flu symptoms are severe or seem to worsen, it is advisable to consult a doctor. Seek medical care if you have trouble breathing, experience chest pain, become confused, have a persistent high fever, or if your symptoms continue for more than 10 days without improvement. Additionally, it’s vital to reach out to a doctor if you belong to a high-risk group, such as young children, older adults, pregnant women, or individuals with chronic health issues. If you encounter symptoms that feel unusual or are uncertain whether your symptoms are due to the flu or another condition, talking to a doctor will help ensure you get the appropriate treatment. 

How can telehealth with an online GP help?

Using telehealth services with an online GP can be a practical method to handle flu symptoms and get medical guidance without the need to leave your home. An online GP can evaluate your symptoms, suggest suitable treatments, and prescribe necessary medications, including antiviral drugs for flu. They can assist in deciding if you require in-person care or tests and provide advice on how to manage symptoms such as fever, body aches, and congestion. If you belong to a high-risk group or are uncertain about your symptoms, an online GP can provide reassurance and help determine if additional medical attention is required, facilitating quicker access to care.

Hola Health’s telehealth service provides a convenient way to manage flu symptoms quickly and effectively: 

• Telehealth consultations: Connect with a doctor 24/7 for an assessment of your allergy symptoms and tailored treatment advice.
• Get script online: Receive electronic scripts for covid oral antivirals or other medications, ready for local pharmacy pickup or same day delivery.
• Dr referrals: If further care is needed, your doctor can provide specialist referrals.
• Medical certificates: Easily obtain a Telehealth medical certificate if the seasonal allergies impact your ability to work or study. 

In summary, the first indicator of the flu is generally a sudden high temperature, often followed by fatigue, body aches, and a sore throat. Recognising these early signs is crucial for obtaining quick care and preventing the virus’s transmission. Early recognition can help manage the flu efficiently, especially for those more vulnerable to complications.