Cold and Flu: When to Rest and When to Get Seen

What a virtual visit can do for respiratory illness

A nurse practitioner can assess how severe your illness is, rule out warning signs, recommend symptom relief, and advise on when you should expect to improve. They can also identify when symptoms point to something beyond a simple virus — such as a bacterial infection or pneumonia — that needs further care.

Caring for yourself at home

Rest, fluids, and over-the-counter remedies for fever and congestion are the foundation. Most colds improve within 7–10 days; influenza can knock you down harder and longer. Antibiotics do not work on viruses and are only used if a bacterial complication develops.

When to seek urgent help

Cold versus influenza: knowing the difference

Colds and influenza are both viral respiratory infections, but influenza tends to hit harder and faster. The Public Health Agency of Canada notes that flu symptoms generally appear one to four days after exposure and can range from mild to severe. Antiviral medication such as oseltamivir is sometimes prescribed, and works best when started early — optimally within 48 hours of symptom onset — which is one reason a prompt virtual assessment can be valuable for higher-risk people.

Why antibiotics are not the answer

A core message from Choosing Wisely Canada is that antibiotics do not work against the viruses that cause colds and flu, and using them anyway causes side effects and fuels antibiotic resistance. A nurse practitioner who recommends rest, fluids, and symptom relief rather than antibiotics is following the evidence. Where appropriate, they may discuss a delayed prescription strategy — a backup to fill only if specific worsening signs appear.

Prevention and protecting others

Prevention matters as much as treatment. Canada.ca recommends the annual flu vaccine as the best protection, and advises staying home and avoiding close contact for at least the first three days when you are most infectious. Handwashing, covering coughs, and staying home when sick reduce spread to family, coworkers, and vulnerable people. A virtual visit lets you get assessed without exposing a waiting room full of others.

Caring for yourself through a respiratory illness

Most colds and bouts of flu are managed at home. Rest gives your immune system room to work, and fluids help thin mucus and prevent dehydration, especially with fever. Over-the-counter products can ease specific symptoms — acetaminophen or ibuprofen for fever and aches, and decongestants or saline rinses for congestion — though they treat symptoms rather than shortening the illness. Public Health Agency of Canada guidance notes that colds usually pass within 7 to 10 days, while influenza can be more severe and last longer.

A virtual visit is useful for building this plan, confirming nothing more serious is developing, and advising who should be watched more closely. Infants, older adults, pregnant people, and those with chronic heart or lung conditions are at higher risk and should seek assessment sooner rather than waiting it out.

Flu, COVID-19, and why telling them apart matters

Cold, influenza, and COVID-19 can look alike at first, but they are not interchangeable. Influenza and COVID-19 can both cause more serious illness and have specific prevention and treatment considerations — including antiviral options that work best when started early. Because isolation guidance and treatment can differ, knowing which virus you have sometimes changes what you should do.

A nurse practitioner can assess your symptoms, advise on testing, and explain current recommendations. This is particularly valuable for higher-risk individuals, where a timely assessment can open the door to antiviral treatment that is far less effective if it is delayed. Even when the answer is ‘rest and fluids,' having that confirmed by a clinician brings real peace of mind.

Frequently asked questions about colds and flu

Can a virtual visit tell whether I have a cold, the flu, or COVID-19? A nurse practitioner can assess your symptoms and advise on testing; because treatment and isolation guidance can differ, knowing which virus you have sometimes matters, especially for higher-risk people. Will I get antibiotics? Not for a viral illness — Choosing Wisely Canada is explicit that antibiotics do not work on the viruses behind colds and flu and can cause harm. They are reserved for genuine bacterial complications. Is there a treatment for the flu itself? Public Health Agency of Canada notes that antiviral medication such as oseltamivir may be prescribed and works best when started early, ideally within 48 hours — which is why prompt assessment helps those at higher risk.

How long should symptoms last? Colds usually pass within 7 to 10 days; influenza can be more severe and last longer. When should I worry? Seek urgent care for difficulty breathing, chest pain, a high fever that will not come down, confusion, or symptoms that suddenly worsen after improving. Who should be assessed sooner? Infants, older adults, pregnant people, and those with chronic heart or lung conditions are at higher risk and should not simply wait it out. How do I avoid spreading it? Canada.ca recommends staying home while you are most infectious — at least the first three days — along with handwashing and covering coughs, and getting the annual flu shot as the best prevention. The throughline is that most colds and flu are managed with rest, fluids, and time, while a virtual visit adds value by confirming nothing more serious is developing and by opening the door to early antiviral treatment for those who would benefit.

Frequently asked questions

References (Canadian sources)

The following Canadian public-health and clinical sources informed this article. They are provided for education and do not replace personalized medical advice.

1. Flu (seasonal influenza): Symptoms and treatment — Public Health Agency of Canada (Canada.ca)
2. Flu (seasonal influenza): Spread, prevention and risks — Public Health Agency of Canada (Canada.ca)
3. The Cold Standard — antibiotics and respiratory infections — Choosing Wisely Canada
4. Using Antibiotics Wisely in Primary Care — Choosing Wisely Canada