What are the opening hours?

Monday 8am - 7pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm

Keystone Allergy and Asthma Center

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United States
Exton, PA
Keystone Allergy and Asthma Center

We specialize in helping our community get lasting relief from asthma and allergy related disorders.

10/08/2025

🔬 2025 Nobel Prize in Medicine Goes to the Immune System’s “Brake Pedal”
This year’s award in Physiology or Medicine recognizes the seminal work on regulatory T cells (T-regs) — the immune system’s crucial restraint system.

The laureates — Mary E. Brunkow, Fred Ramsdell, and Shimon Sakaguchi — uncovered how immune cells keep self-reactive responses from spiraling into autoimmunity, and identified the key transcription factor FOXP3 that defines and regulates T-regs.

🧠 Why This Matters to Us (as Providers / Immunologists / Allergists)

T-regs are central to peripheral immune tolerance — the mechanism preventing our immune system from attacking healthy tissue.

Dysregulation of T-regs (or FOXP3 mutations) causes severe autoimmune conditions.

Their discovery opens new therapeutic windows: modulating T-reg activity for autoimmune disease, transplantation, cancer immunotherapy, and more

09/22/2025

The Chester County Health Department is hosting a Flu and COVID-19 vaccination clinic at Great Valley Middle School (255 Phoenixville Pike, Malvern, PA) on Thursday, September 25th from 3:00–6:45 PM.

💉 Protect yourself and your community this season by getting vaccinated.
👉 Appointments: chesco.org/fallvaccines

📞 Call: (610) 344-6225

Insurance is not required, but bring your card if you have one.
⚠️ COVID-19 vaccine supply may be limited due to shipping delays — check the site often for updates.

✅ At Keystone Allergy & Asthma Center, we care about keeping Chester County healthy. Stay protected this fall, and if seasonal allergies are also slowing you down, we’re here to help!

09/17/2025

Our recommendations for 2025 fall vaccination schedule. Please do not hesitate to call or text our office at 484-897-7143 for your personalized recommendation.

08/26/2025

📚🍎✨ To all the college students heading back to campus — good luck this academic year! Whether you’re staying close to home or moving into a new dorm, we wish you a healthy, successful, and exciting semester ahead.

Your allergy and asthma team is here to help keep you breathing easy so you can focus on classes, friends, and new experiences. Don’t hesitate to reach out if you need support managing your allergies or asthma during the busy school year.

🎓💙 Stay well, study hard, and enjoy the journey!

08/21/2025

Food allergies are common—and so is bullying related to them. Research shows that children with food allergies are more likely to experience bullying, teasing, or social exclusion because of their condition. This can affect mental health, school performance, and overall well-being.

07/30/2025

Did you know that metal allergies can cause serious complications after medical and dental procedures? For any patients with history of contact allergy, consider patch testing with Keystone Allergy and Asthma Center.

When you need metal allergy testing (for patient with history of contact allergy):
- Dental implants, crowns, or orthodontic work
- Joint replacements (hip, knee, shoulder)
- Cardiac stents or pacemakers
- Surgical implants or hardware
- Even endoscopy procedures with metal instruments

Why it matters: Undiagnosed metal allergies can lead to:
- Prolonged healing
- Implant rejection
- Chronic inflammation
- Persistent pain and discomfort

Good news: Metal allergy testing is simple and straightforward! We offer comprehensive patch testing and can customize panels for specific metals.

07/24/2025

What is the Air Quality Index (AQI)?

The AQI is a daily measurement that tells you how clean or polluted your outdoor air is. The AQI reports on five major air pollutants: ozone, particulate matter, sulfur dioxide, carbon monoxide and nitrogen dioxide. Think of it as a weather forecast for the air you breathe!
📊 Today's AQI in Exton: 83 (Moderate) - Dominant pollutant is PM2.5 (tiny particles that irritate the eyes, nose, and respiratory system)
Why This Matters for Your Allergies:
When air quality is poor, it doesn't just make breathing harder - it actually makes allergens like pollen stick around longer in the air and can make your allergy symptoms more severe. Poor air quality can also inflame your respiratory system, making you more sensitive to allergens you encounter.

Tips for High AQI Days:
🏠 Stay indoors during peak pollution hours (usually midday)
🪟 Keep windows and doors closed
❄️ Use air conditioning instead of opening windows
💨 Run air purifiers with HEPA filters in bedrooms and main living areas
🚗 Avoid outdoor exercise - move workouts indoors
🌅 If you must go outside, early morning is usually best
📱 Check daily AQI at AirNow.gov or weather apps

At Keystone Allergy and Asthma Center in Exton, we help you breathe easier every day of the year! Whether it's seasonal allergies, asthma triggered by poor air quality, or chronic respiratory issues, our experienced team is here to provide personalized treatment plans.

Ready to take control of your allergies? Call us today to schedule your consultation!

07/21/2025

🥜 Cashew & Pistachio Allergy: What You Should Know! 🌰
Cashew and pistachio allergies often go hand-in-hand due to their close botanical relationship. These nuts contain similar storage proteins that can trigger severe allergic reactions, even with small exposures.

🚨 Reactions can range from mild hives to life-threatening anaphylaxis — which is why carrying an epinephrine auto-injector (EpiPen) is crucial for anyone diagnosed with a tree nut allergy.

💉 For patients with frequent allergic reactions or those who are highly sensitized, Xolair (omalizumab) may be considered as a treatment option to reduce allergic response.

If you or your child has a tree nut allergy, talk to us about:

Cross-reactivity with other nuts

Reading labels and avoiding hidden sources

Emergency action plans and medication options

📞 Call us today to schedule an allergy evaluation or learn more about treatment options like Xolair!

07/16/2025

🌞 Meet Our Summer Intern! 🌟

We're excited to welcome our summer intern to Keystone Allergy & Asthma Center! 🎓✨

Working alongside our team to learn the ins and outs of allergy and asthma care — from helping patients understand their triggers to supporting our behind-the-scenes work.

Be sure to say hi if you see them around the clinic! 👋 We love helping future healthcare professionals grow.

07/15/2025

🐝 Venom Allergy Awareness at Keystone Allergy! 🐝

Did you know that not all stinging insects are the same—and their nests can tell you a lot about them?

🌼 **Honeybees** are generally gentle unless provoked. They nest in hives—often in hollow trees or man-made boxes—and only sting once.

🏡 **Yellowjackets** are more aggressive and *love your picnic food*. They build paper-like nests underground or in wall voids. Be careful when mowing lawns!

🛠️ **Paper Wasps** make open, umbrella-shaped nests under eaves, decks, or playsets. Their sting can pack a punch, especially if you're allergic.

🌲 **Hornets** (like bald-faced hornets) build large, hanging nests in trees or shrubs. They’re fiercely protective and will defend their territory in swarms.

🩺 For those with venom allergies, even one sting can be dangerous. If you've had swelling beyond the sting site, trouble breathing, or dizziness after a sting—get evaluated. We offer venom allergy testing and life-saving immunotherapy right here in Exton.

06/17/2025

🌟 Meet Our Summer Intern Samhita! 🌟

We're excited to welcome our amazing summer intern to Keystone Allergy and Asthma Center! 💉📋

Already jumping in and making a difference—helping with patient care, learning the ropes, and bringing fresh energy to our team. Grateful to have them with us this season! ☀️👩‍⚕️👨‍⚕️

06/16/2025

Gold contact allergy can exist, sometimes it is more difficult to diagnose, especially due to increase fall positive results. Many times more prolonged testing is needed.

Concern about gold allergy from:
- Jewelry - gold and gold plated allergy
- dental gold - gold fillings, can show lichenoid type reactions and or lesions
- Other implanted material like gold plated stents
- Newest from gold plated headphones due to charging contacts

Please speak with Keystone Allergy and Asthma Center if you concerned about contact irritant or allergic dermatitis.

Address

310 Exton Cmns
Exton, PA
19341

Opening Hours

Monday	8am - 7pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm

Telephone

+14848977143

Website

https://keystoneallergy.com/

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