Urgent Care Center of Westmont treats common illnesses and infections on a walk-in basis in Westmont, IL, 7 days a week. Sore throats, coughs, flu, ear and sinus pain, pink eye, stomach bugs and urinary infections are everyday visits. We test when a result will guide your care.
Most colds, coughs and stomach bugs are caused by viruses, and antibiotics do not work on viruses.
Rapid flu, COVID-19 and strep tests and urine tests can help confirm what is causing your symptoms.
Chest X-ray for possible pneumonia is available only at our Cass Ave clinic.
Flu and other respiratory viruses spread most in Illinois during the winter months.
Which illnesses and infections do we treat?
Urgent Care Center of Westmont, also known as Immediate Care Center of Westmont, sees adults and children for illnesses that come on fast. Our team is led by board-certified physicians. If your problem is not listed, a general urgent care visit is the place to start.
Illnesses we treat, grouped by body area
Body area
Common problems
Service pages
Throat and voice
Sore throat, swollen tonsils, hoarse or lost voice
Most illnesses in this group are a good fit for urgent care. MedlinePlus lists colds, flu, earaches, sore throats and low-grade fevers among the problems urgent care handles well. Use this guide to pick the right place.
Where to go for an illness
Your situation
Where to go
Sick for a day or two, breathing comfortably, drinking fluids
Urgent care, or home care if you are improving
Sore throat with fever, ear pain, burning when you pee
Urgent care, where a quick test can guide treatment
A cough or sinus problem that keeps coming back
Your primary doctor, for a longer-term plan
Medicine refills or follow-up on a chronic condition
Check inWalk in at either Westmont, IL clinic or book a visit online. Bring your ID, insurance card and a list of medicines.
History and vital signsWe ask when symptoms started, what you have tried and who else is sick at home. We check temperature, pulse, oxygen level and blood pressure.
ExamA clinician looks in your ears, nose and throat, listens to your lungs and checks your belly when needed.
Testing, if it helpsWe may run a flu test, COVID-19 test, strep swab or urine test. A chest X-ray is available at our Cass Ave clinic.
Your care planWe explain what we found and recommend treatment, which may include prescription medicine when appropriate. You get home-care steps and a work or school note if you need one.
Virus or bacteria: why it matters
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Most colds, flu, coughs and stomach bugs are caused by viruses. MedlinePlus explains that antibiotics do not work on viral infections, including colds, flu, most sore throats and most cases of bronchitis. Taking them when they are not needed can cause side effects and makes future infections harder to treat.
Some infections are bacterial and do need an antibiotic. Strep throat, many urinary tract infections and some ear, sinus and lung infections fall in this group. That is why we test when a test can tell the difference. Antiviral medicine for flu is most helpful when started early, so do not wait days to be seen if you are at higher risk.
Feeling better, then suddenly worse? A new fever or cough after a few days of improvement can mean a second infection. That is a good reason to come in.
Illness season in Westmont, IL
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The Illinois Department of Public Health notes that flu epidemics happen almost every winter. In DuPage County, illness season usually runs from late fall into early spring, when flu, COVID-19, RSV and stomach bugs move through schools, offices and homes.
Fall: back-to-school colds and strep throat. It is also a good time for a flu shot.
Winter: flu, RSV and COVID-19 peak, along with stomach bugs that spread through families.
Spring: tree pollen can trigger sinus pressure that feels like an infection.
Summer: swimmer's ear, food poisoning from picnics and travel, and fewer colds.
After a fever, wait until you are fever-free for 24 hours without fever-reducing medicine before going back to school or work. Our fever return guide walks you through it.
Home care that helps while you recover
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Drink small, frequent sips of water or an oral rehydration drink, especially with vomiting or diarrhea.
Rest. Your body fights infection better when you sleep.
Use fever and pain medicine exactly as the label says, and ask us about the right dose for a child.
Wash hands often and cough into your elbow to protect your family.
Stay home while you have a fever or are vomiting.
If you are not improving as expected, come back or call (630) 324-6825. Browse our symptom guides for more home-care tips.
Common questions
Can urgent care give you antibiotics?
Yes, when you need them. Our clinicians can prescribe antibiotics for bacterial infections such as strep throat or a urinary tract infection. For viral illnesses like colds and flu, antibiotics do not help, so we focus on relief and, for flu, antiviral medicine when appropriate. We explain the reason for every recommendation.
Can urgent care test for flu and strep?
Yes. We offer rapid flu, COVID-19 and strep testing at our Westmont, IL clinics. A clinician decides which test fits your symptoms, because a result is most useful when it will change your treatment. Learn more about strep throat testing and treatment and flu testing.
Should I go to urgent care for a UTI?
Yes. Burning when you pee, needing to go often and cloudy urine are common UTI signs, and a quick urine test can confirm it. Urgent care is a good choice when you cannot see your regular doctor today. Fever, back or side pain and vomiting can mean a kidney infection and need prompt care.
Can urgent care diagnose pneumonia?
Yes. Our clinicians listen to your lungs, check your oxygen level and may order a chest X-ray, which is available only at our Cass Ave clinic. If pneumonia is found, we recommend treatment and tell you what to watch for. Read more on our pneumonia and walking pneumonia page.
When should I see a doctor for a cold?
Most colds get better on their own in about a week to 10 days. Come in if symptoms last longer than that, if you have a fever for more than a few days, ear or sinus pain, or if you start to feel better and then get worse. Those can be signs of a bacterial infection.
“Great experience at Immediate Care Center. The doctors and staff were very kind, friendly, and professional. They took great care of me and made me feel comfortable. Highly recommend!”
Ahadkhon T. · July 2026 · Google★★★★★
“Very prompt, very knowledgeable and very kind and informative too. Excellent care by Mattie and Kelly!!!”
Tim G. · May 2026 · Google★★★★★
“I had a laceration that was stitched in ten minutes and was out of there in thirty minutes! No pain the next day. Meds are working! Professional staff all around.”
