It doesn’t take longer when a flu wave hits, and you start experiencing sudden fever, runny nose, on-and-off sniffles, sore throat, and that constant drop in energy that’s hard to ignore.

Flu is a widespread respiratory illness that always seems to get worse each year.

According to the CDC, 32 million illnesses, 380,000 hospitalizations, and 23,000 deaths have been reported from flu so far this season, with children most severely affected and adults and older individuals experiencing moderate illness.

But catching the flu is not the end of the world. With the right care early on, most people are able to manage it well and recover without complications. Getting vaccinated each year also helps to reduce the risk of severe illness and slows the spread to those around you.

As Dr Sheikh, MD at Family Urgent Care explains,

“Flu often feels worse at first, which is why people panic. But with early care and the right guidance, it’s usually a very manageable illness.”

What is the Flu?

The flu is a common respiratory infection that mainly affects your nose, throat, and lungs sometimes. It is caused by an influenza virus, which is highly contagious. It spreads from person to person and quickly starts affecting the entire body without you even realizing you have caught it. This is why it feels more intense than a common cold.

The flu wave usually runs from October through May and peaks in winter, especially between December and February, as per the CDC. But it doesn’t rule out the fact that you can get flu outside the typical “flu season,” as most flu strains keep circulating throughout the year.

Can You Get the Flu Twice?

Yes, you can get the flu twice, even within a single season. This usually happens because of different strains of the influenza virus that keep circulating throughout the year. For example, if you recover from Influenza A, you may still get sick from Influenza B later on, as immunity from one strain doesn’t make you completely immune against another. People with weakened immune systems are more susceptible to reinfection. Also, the influenza virus undergoes frequent mutations, producing new variants that can evade prior immunity.

Types of Influenza Virus

Influenza viruses are mainly grouped into four types (A, B, C, and D), but not all of them affect humans in the same way.

• Influenza A and B are the most common types responsible for seasonal flu outbreaks in people. Influenza A tends to cause larger outbreaks and more noticeable waves of illness, while Influenza B usually leads to smaller, more localized seasonal spread.
• Within Influenza A, different strains circulate each year, and one of the more talked-about strains in recent seasons is H3N2. This strain is known for spreading easily and often causing stronger symptoms, especially in children, older adults, and people with underlying health conditions.
• Influenza C usually causes mild illness, and Influenza D primarily affects animals and is not known to cause diseases in humans.

Flu Symptoms

Flu symptoms usually come on suddenly and feel more intense than a regular cold. It often feels like your body has been hit all at once, leaving you drained and achy within a short span of time.

• Fever
• Fatigue
• Chills
• Runny nose
• Sore throat
• Body aches
• Headache
• Loss of taste and smell
• Cough
• Weakness

While flu symptoms are generally the same in children as adults, they also tend to have ear pain, nausea, diarrhoea, and vomiting.

How Does the Flu Spread?

The flu spreads more easily than you think. Sometimes, all it takes is a quick conversation, a shared surface, or being around someone who seems “slightly sick” for the virus to pass along. That’s why flu tends to move quickly through homes, schools, workplaces, and public spaces once the season picks up.

Flu mainly spreads through tiny respiratory droplets released when an infected person:

• Coughs
• Sneezes
• Talks closely to others
• Touches shared surfaces after coughing or sneezing

You can catch the flu by touching contaminated surfaces like phones, doorknobs, keyboards, or shopping carts and then touching your eyes, nose, or mouth without realizing it. As the droplets land in the air, you are more likely to get the flu if you are near an infected person and breathe in the same space.

How Long is the Flu Contagious?

One of the tricky things about the flu is that you can spread it before you even realize you’re sick. Most people become contagious about a day before symptoms begin and can continue spreading the virus for around 5 to 7 days after getting sick.

The flu tends to be most contagious during the first 3 to 4 days, when symptoms like fever, cough, body aches, and fatigue are at their peak. This is often when people still think they can “push through it,” not realizing they may already be passing it on to family, coworkers, or children at home.

People at High Risk of Complications from the Flu

Certain people are at a high risk of developing serious complications from flu, such as pneumonia, secondary infections, and worsening of chronic health conditions.

The people at high risk include.

• Older adults, especially those over 65
• Children, particularly under 5
• Pregnant women
• Those with blood disorders.
• People with asthma, COPD, or chronic lung disease
• Individuals with diabetes or heart disease.
• People with weakened immune systems

The flu symptoms might seem manageable for such people at first, but they can get worse unexpectedly in a matter of time. This happens because their bodies have a hard time recovering.

As Dr Sheikh says,

The flu doesn’t always play fair with older adults and people with chronic conditions. What feels like ‘just a fever’ one day can become much harder on the body the next.

So, if you fall into the groups, be extra careful during flu season and keep up with your yearly flu vaccination.

Flu vs Cold vs COVID

When symptoms first begin, most people go through the same confusion: Is this just a cold? Could it be the flu? Or is it COVID again? The early signs can feel frustratingly similar, especially when fatigue, sore throat, congestion, or fever start showing up all at once.

The biggest clue is often how your symptoms develop. A cold usually comes on gradually and stays mild. Flu tends to hit suddenly and leave you feeling drained very quickly, while COVID-19 can vary from person to person and change its course over time.

Dr Sheikh, MD, at Family Urgent Care says,

“While the symptoms give you much clarity, getting tested is still the safest way to know what you’re dealing with.”

How Flu Is Treated

When the flu hits hard, most people just want one thing, which is to feel normal again as quickly as possible. But recovery usually isn’t about finding a “magic cure” but giving your body the right support while the virus runs its course.

The basics often help more than people expect. For instance,

• Rest gives your body energy to fight the infection instead of pushing through exhaustion.
• Fluids help prevent dehydration, especially when fever and sweating are involved.
• Over-the-counter medications like acetaminophen or ibuprofen can help ease fever, headaches, and body aches.

In some cases, doctors may prescribe antiviral medications such as

• Oseltamivir (Tamiflu)
• Zanamivir (Relenza)
• Baloxavir marboxil (Xofluza)
• Peramivir (Rapivap)

These tend to work best when started within the first 48 hours of symptoms, especially for people at higher risk of complications.

What usually doesn’t help is trying to “power through” the flu, skipping rest, or taking antibiotics unnecessarily. Since the flu is caused by a virus, antibiotics generally won’t help unless there’s a separate bacterial infection.

Effective Ways to Prevent Flu

Flu spreads quickly, especially during seasonal waves when people are constantly around others. And often, you don’t realize how easily it passes from one person to another until everyone around you starts feeling unwell.

However, a few simple habits can significantly lower your risk of catching the flu or passing it on to someone more vulnerable. Some of them are as follows.

• Get your yearly flu vaccine to reduce the risk of severe illness
• Wash your hands regularly, especially after public contact
• Avoid touching your face frequently
• Cover coughs and sneezes properly
• Avoid sharing items like towels, spoons, and cups with an infected person.
• Stay home when you’re sick to avoid spreading the virus
• Keep your immune system supported with proper sleep, hydration, and nutrition

When to Go to Urgent Care

If you have moderate symptoms that don’t improve with home care, you should seek urgent care immediately. The signs include.

• Fever that doesn’t respond to medicines and lasts more than 3 days.
• Ongoing body aches or fatigue that doesn’t feel normal.
• Severe headache
• Sore throat or cough that worsens
• Severe dehydration that comes with symptoms like lightheadedness, less or no urination, and dark urine.)
• Flu symptoms in high-risk individuals like young children, older adults, pregnant women, or people with chronic conditions.

Dr Sheikh says,

“Flu has a way of snowballing when people try to tough it out for too long.”

Getting yourself checked early can often help you get better before the flu takes a toll on your body.

At Family Urgent Care, our experienced staff provides rapid flu tests, prescribes antiviral medications, and ensures instant relief without long waits.

When Emergency Care Is the Right Option?

You should seek emergency care if your body struggles with basic functioning, alertness and has the following symptoms.

• Persistent high fever (above 103 F)
• Trouble breathing
• Muscle pain and whole body weakness.
• Pain or pressure in the chest and abdomen.
• Blue lips, face, or fingertips
• Constant dizziness
• Confusion
• Seizures.
• Symptoms get better only to return.

Conclusion

Flu can feel overwhelming as it usually comes unexpectedly, and the symptoms might confuse you with other related seasonal illnesses like a cold. But knowing about the virus, how it spreads, and choosing the most suitable care options at the given time can help you with an easy recovery.

As flu season returns every year with a stronger strain, some practical steps like yearly vaccination, drinking fluids, taking rest, and seeking timely medical help not only provide you relief from the virus but also reduce the chances of spreading it to others.

As Dr Sheikh says,

A yearly flu shot and a few mindful habits can save you from days or sometimes weeks of feeling completely run down.

If your symptoms get difficult to manage on your own even after a week, don’t wait for them to get worse. At Family Urgent Care, we have expert physicians who provide effective medical care for all seasonal illnesses and guide you on the next steps towards recovery.

Don’t let another flu wave take over your life. Visit our walk-in clinic in Rogers Park for same-day treatment right when you need it.

FAQs

1. What helps the flu go away fast?

Antiviral medications like Oseltamivir (Tamiflu), prescribed by your doctor within the first 48 hours, can work fast to provide relief. Besides, a few self-recovery tips like drinking plenty of fluids, taking rest, and using OTC medicines like ibuprofen and acetaminophen can also work effectively well to make symptoms like fever and body aches feel less severe.

2. Which type of flu is more serious?

Influenza A is more severe than others as it tends to spread faster, cause larger outbreaks, and lead to higher hospitalizations and deaths each year. As per the CDC, the current strain (H3N2) of influenza has made this flu season highly severe and caused severe illness in children, the elderly, and those with weakened immune systems.

3. What’s the worst thing to eat when you have the flu?

Heavy, oily, processed food and those containing high sugar content can prolong nausea, fatigue, and other flu symptoms. Additionally, excessive caffeine and alcohol also interfere with your body’s ability to fight off infection. So, it’s better to have something that is light and easy on the stomach, like broths, leafy greens, and lemon/ginger water, when you have the flu.

4. How Long Does the Flu Last?

Flu symptoms usually last 5 to 7 days, with severe symptoms like fever and body aches improving in 3 to 4 days. However, acute symptoms like fatigue, cough, and weakness can linger longer. Some people start feeling better after a few days, while others may need a week or two before they get back to life with full energy.

5. Can you have the flu without a fever?

Yes, it’s possible to have the flu without a fever because not everyone experiences it. In fact, 55% of people don’t develop a fever but are still diagnosed with the flu, having underlying symptoms like fatigue, chills, sore throat, congestion, cough, or body aches.

6. Can the flu shot give you the flu?

No, a flu shot can not give you the flu. This is mainly because flu vaccines are made with an inactive virus or components of a virus that are usually too weak to cause any symptoms. Some people experience low-grade fever, mild soreness, or fatigue, but that usually happens because of their immune response to vaccines.

7. What are the side effects of the flu shot?

Some common side effects include soreness at the injection site, body aches, mild fever, fatigue, or headache for a day or two. These are usually mild and resolve on their own.

8. When is the flu no longer contagious?

Most people stop being contagious about 5–7 days after symptoms start, especially once the fever is gone for 24 hours without medication. However, children and people with weaker immune systems may spread the virus for longer.

9. Why Do Flu Shots Make You Feel Sick?

It’s completely normal to feel mildly sick after a flu shot. It usually happens because your body reacts to the vaccine and starts making antibodies to build protection against the flu virus. However, the reaction is short-term and comes with symptoms like body aches, fatigue, and low-grade fever that lasts for a day or two. The flu shot doesn’t contain a live virus, so it can’t give you the flu itself.