Walk-in flu testing in Westmont, IL for influenza A and B. Urgent Care Center of Westmont checks your symptoms, tests when it will guide care, and explains treatment options. Open 7 days a week. Same-day walk-in visits, no appointment needed.
Flu often starts suddenly with fever or chills, cough, sore throat, body aches, headache and tiredness. A flu test can show whether influenza is the cause, which helps your provider decide on treatment. Urgent Care Center of Westmont, also known as Immediate Care Center of Westmont, offers walk-in flu testing for influenza A and B in Westmont, IL.
Timing matters. The CDC says flu antiviral medicines work best when started within two days after symptoms begin. If you are at higher risk, such as age 65 or older, pregnant, or living with asthma, diabetes or heart disease, do not wait to be seen. Walk in or check in online.
Key facts
Flu can spread from about 1 day before symptoms start until 5 to 7 days after, and people are most contagious in the first 3 days (CDC).
Children and people with weakened immune systems may stay contagious longer.
In the US, flu activity most often peaks between December and February (CDC).
CDC recommends a flu vaccine every season for everyone 6 months and older, ideally by the end of October.
Flu symptoms and who is at higher risk
The CDC lists these common flu symptoms:
Fever or feeling feverish, with chills
Cough and sore throat
Runny or stuffy nose
Muscle or body aches and headaches
Fatigue
Vomiting and diarrhea, more often in children
People at higher risk of flu complications include adults 65 and older, children under 5, pregnant people, and those with long-term conditions such as asthma or heart disease.
How flu testing works at our Westmont, IL clinic
A provider asks about your symptoms and examines you. If a test will help, we collect a swab from your nose or throat and test for influenza A and B. We may also consider other causes, such as COVID-19, RSV or strep throat.
About test accuracy
The CDC explains that rapid flu tests are fast but may not be as accurate as lab-based molecular tests. A negative rapid test does not always mean you do not have flu. Your provider may still diagnose flu based on your symptoms and what is spreading in the community.
Treatment
Most healthy people with flu get better with rest, fluids and fever control. The CDC recommends antiviral treatment as soon as possible for people with flu who are at higher risk of complications. Your provider will explain whether antivirals make sense for you.
Flu emergency warning signs
Read moreClose
Per the CDC, get emergency care right away for:
Adults: trouble breathing, ongoing chest or belly pain or pressure, confusion or dizziness, seizures, severe muscle pain or weakness, or symptoms that improve and then come back worse
Children: fast or hard breathing, bluish lips or face, ribs pulling in with breaths, chest pain, dehydration, not alert when awake, seizures, fever above 104°F not controlled by medicine, or any fever in a baby under 12 weeks
Most major plans are accepted, including Medicare, Humana, Cigna and Blue Cross Blue Shield. Call (630) 324-6825 to confirm your coverage, or see our insurance information.
Check inWalk in or check in online. Note the day your symptoms started, since timing affects treatment choices.
ExamYour clinician checks your temperature, listens to your lungs and looks at your ears and throat.
SwabIf a test will guide care, a nose or throat swab is tested for influenza A and B.
Other causesBecause symptoms overlap, your clinician may also consider COVID-19, RSV or strep.
PlanYou get home care advice and, when appropriate, antiviral medicine, plus guidance on when you can return to work or school.
Flu recovery timeline
Read moreClose
What a typical flu course looks like
Time since symptoms began
What's typical
What helps
Days 1 to 3
Fever, chills, body aches and the worst tiredness; most contagious
Rest, fluids and a fever reducer; ask about antivirals early if you are at higher risk
Days 4 to 7
Fever usually easing; cough and fatigue linger; may still be contagious
Keep resting and stay home until you meet the return guidance below
Week 2 and beyond
Cough and tiredness can hang on
Ease back into activity
Home care and when to go back
Read moreClose
Rest and drink plenty of fluids.
Use a fever reducer as the label directs. Do not give aspirin to children or teens.
Cover coughs and sneezes, and wash hands often.
Stay away from people at higher risk, such as babies, older adults and anyone who is pregnant.
CDC advises going back to normal activities once you have been fever-free for at least 24 hours without fever-reducing medicine and your symptoms are improving overall. For the next 5 days, take extra care around others, such as wearing a mask or keeping distance.
Flu spreads mostly in fall and winter in the United States. CDC data show activity most often peaks between December and February, with February the most common peak month over four decades. Flu viruses are found year-round, so a test can still help in spring or summer.
CDC says September and October are generally good times to get vaccinated. Protection takes about 2 weeks to build. Ask about a flu shot through our immunizations service once you have recovered.
Not always. A test helps most when the result will change treatment, such as for people at higher risk. Your provider will advise you.
How soon should I come in?
Early is better. Antiviral medicine works best when started within two days of symptoms.
Can a flu test be wrong?
Yes. Rapid tests can miss some cases, so a negative result does not rule out flu.
Should I get a flu shot after I recover?
Yes, if you have not had one this season. The CDC recommends a flu vaccine every year for most people.
How long is the flu contagious?
CDC says flu can be detected from about 1 day before symptoms start until 5 to 7 days after. People are most contagious in the first 3 days. Children and people with weakened immune systems may spread it longer. Read more in how long are you contagious with influenza A?
When should I get a flu shot?
CDC says September and October are generally good times, ideally by the end of October. Getting vaccinated later is still worthwhile while flu is spreading. Antibodies take about 2 weeks to develop, so earlier in the season gives you protection before flu peaks.
Can you get the flu twice in one season?
Yes. More than one flu strain, such as influenza A and B, can circulate in the same season, so you can catch a different one after recovering. A yearly flu vaccine helps protect against several strains.
Should my child stay home with the flu?
Yes. CDC notes that children may stay contagious longer than adults. Keep your child home until they have been fever-free for at least 24 hours without fever medicine and are feeling better overall. Our fever return guide can help.
“I sprained my ankle so I went looking for an urgent care in my area. I came to this one, and I’m glad I did because everyone was nice and thoughtful! It was quick and simple process and I’d definitely recommend to anyone who needs help.”
Yahia H. · July 2026 · Google★★★★★
“Everyone was so comforting, and spoke to me intelligently. The cost was very manageable. I will be returning for future health needs!”
Rumpel F. · June 2026 · Google★★★★★
“The staff was very professional Easy to talk to and very knowledgeable. I would recommend. & return 5 ⭐️”
