Your immune system plays a vital role in keeping you healthy. It defends your body against seasonal allergens, infections, and irritants. However, sometimes your immune system can go into overdrive, causing prolonged, uncomfortable, and potentially severe symptoms.
This happens because certain external triggers can mistakenly cause your natural defenses to attack and burden healthy tissues. Everyone has different sensitivities to various external triggers, which can cause a wide variety of symptoms.
Our certified medical team at Corewell Health Urgent Care evaluates immune reaction symptoms and provides personalized, same-day treatments. Whether you're experiencing discomfort from an allergic reaction, a medication sensitivity, or another immune system trigger, we’re ready to help you feel better fast. Keep reading to learn more about common immune responses, what causes them, and how we treat them with care and expertise.
Visit one of our walk-in Southeast Michigan clinics today. No appointment is required to be seen, but you’re welcome to book ahead online or schedule a virtual visit.
Common Symptoms of an Immune Response
Adverse immune reactions may develop suddenly or build gradually over time. Without the proper care, these reactions can become disruptive or lead to more serious complications.
Symptoms to watch for can include:
- Itchy eyes, sneezing, or nasal congestion
- Redness, swelling, or a visible rash
- Nausea or stomach issues after taking medication
- Excessive swelling around insect bites or stings
- Body aches, chills, or fever
- Fatigue or general discomfort
Because these symptoms can mimic other conditions, receiving an accurate diagnosis from a medical professional is crucial. Our providers offer on-site testing, thorough exams, and prompt treatment so you can start feeling better fast.
*If you’re experiencing severe swelling, difficulty breathing, or symptoms of anaphylaxis, call 911 or visit the nearest emergency room immediately.
Different Immune Reaction Types To Know
Many factors can trigger a heightened immune response, and everyone’s body reacts differently. Identifying the source is key to getting effective treatment, whether it’s an allergen, infection, or insect bite.
Reactions to Allergens
In Southeast Michigan, allergy season can stretch from early spring through late fall due to tree, grass, and weed pollens like ragweed. These allergens can trigger immune responses such as sneezing, nasal congestion, itchy eyes, or mild swelling. Indoor allergens like dust mites and pet dander can also cause year-round symptoms. A medical evaluation can help identify your triggers and relieve symptoms before they worsen.
Medication Side Effects
Insect Bites and Bee Stings
Viral and Bacterial Infections
How Corewell Health Urgent Care Can Help
We evaluate immune-related symptoms with a complete clinical assessment. During your visit, our providers may:
- Conduct a physical exam
- Ask about recent exposures or new medications
- Run rapid tests for illnesses like the flu or strep
- Recommend follow-up allergy testing or refer you to a specialist
If we identify a severe reaction, we’ll take immediate steps to stabilize symptoms and refer you to emergency care if necessary.
Whether you know your trigger or just aren’t feeling right, you can trust our team to help you get clarity and care all in one visit.
Compassionate Care for Immune Hypersensitivity
Managing overactive immune responses often requires both symptom relief and ongoing awareness. We offer treatments like antihistamines, anti-inflammatory medications, wound care, and follow-up guidance. If further treatment is needed, we can provide specialist referrals.
At Corewell Health Urgent Care, your well-being is our priority. Our mission is to support your health and educate you from evaluation to recovery.
Visit us for fast, same-day care and feel confident that you’re in capable hands.

