Keystone Allergy and Asthma Center

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

As our incredible American athletes train and prepare, let's cheer them on every step of the way to the Winter Olympics!...
02/18/2026

As our incredible American athletes train and prepare, let's cheer them on every step of the way to the Winter Olympics! Their dedication, passion, and pursuit of excellence inspire us all.

Go Team USA! We're rooting for you! 🥇⛷️🏂⛸️

As flu and respiratory virus season ramps up, it’s important to know how these bugs travel and how to protect your house...
02/05/2026

As flu and respiratory virus season ramps up, it’s important to know how these bugs travel and how to protect your household. Most upper respiratory viruses—including the flu—spread via tiny droplets when we cough, sneeze, or even talk.

The "Contagious Window"
Knowing how long you’re a risk to others is key to stopping the spread:

The Flu: You can typically transmit the virus 1 day before symptoms start and up to 5–7 days after becoming sick.

Common Colds: Most people remain contagious for about 2 weeks, though the risk is highest during the first 2–3 days.

What to do if a loved one gets sick:
Hydrate & Rest: The basics are still the best medicine.

Sanitize High-Touch Surfaces: Think doorknobs, light switches, and phone screens.

Create a "Sick Zone": If possible, keep the symptomatic person in a separate room to limit household exposure.

⚠️ A Note for Our Asthma Warriors
Common viruses are one of the most frequent triggers for asthma exacerbations. An infection that feels like a sniffle to one person can lead to a serious flare-up for someone with asthma.

If you or a loved one has asthma, don't wait for the first cough to plan your defense. Contact Keystone Allergy today to ensure your Asthma Action Plan is updated and ready for the season.

Stay healthy, stay informed! 🩺✨

❄️ Winter Storm Prep Tips for Chester County This WeekendA winter storm is expected in our area this weekend. Here are a...
01/23/2026

❄️ Winter Storm Prep Tips for Chester County This Weekend

A winter storm is expected in our area this weekend. Here are a few simple steps to help you and your family stay safe and comfortable:

🛒 General Preparedness Tips:
• Fill up your gas tank before the storm arrives
• Stock up on drinking water and easy-to-prepare foods
• Charge phones, tablets, and backup power banks
• Have flashlights, batteries, candles, and matches ready
• Set your thermostat to a steady temperature
• Bring pets indoors and prepare extra pet food
• Park cars away from trees and charge electric vehicles early

🌬️For Our Patients:
• Keep rescue inhalers and daily meds easily accessible
• Make sure you have enough medication refills for several days
• Avoid using scented candles or fireplaces that may worsen breathing
• Run a humidifier if indoor air becomes too dry
• Keep windows closed to reduce cold air triggers
• If you use a nebulizer, ensure it’s fully charged or has backup power

💙 At Keystone Allergy & Asthma Center, your health and safety come first.
Stay warm, stay safe, and reach out if your asthma or allergy symptoms flare during the storm.

📞 484-897-7143 | 📍 Exton, PA

It’s not too late to get protected!Both the flu vaccine and RSV vaccine (for eligible adults) are still strongly recomme...
11/20/2025

It’s not too late to get protected!

Both the flu vaccine and RSV vaccine (for eligible adults) are still strongly recommended for this season — especially for young children, older adults, and patients with asthma or chronic lung conditions.

Staying up to date can help prevent severe illness and complications.

If you have questions about whether the vaccines are right for you or your child, we’re here to help.

Helping you breathe easier this winter.

At Keystone Allergy & Asthma Center here in Exton, PA, we’re proud to care for families throughout Chester County — help...
11/04/2025

At Keystone Allergy & Asthma Center here in Exton, PA, we’re proud to care for families throughout Chester County — helping both kids and adults breathe easier and live better.

Whether you’re dealing with seasonal allergies, asthma, sinus issues, hives, eczema, or food allergies, our team provides personalized testing and treatment right here in the community.

✨ What makes us different:
✅ Fast appointments — often within 1–2 weeks
✅ Care for all ages, from infants to adults
✅ Skin testing, allergy shots, and sublingual drops available in-office
✅ Friendly, independent practice focused on long-term relief

📍 Exton, PA – proudly serving West Chester, Downingtown, Malvern, Coatesville & beyond
🌐 www.keystoneallergy.com
| ☎ 484-897-7143

🎉 Big congratulations to two of our young patients who passed their egg challenge!It’s always such a joy to see kids saf...
11/04/2025

🎉 Big congratulations to two of our young patients who passed their egg challenge!

It’s always such a joy to see kids safely reintroducing foods after allergy testing and supervision. 🥚💪

Each challenge is a careful step toward more food freedom — and today’s smiles say it all!

🔬 2025 Nobel Prize in Medicine Goes to the Immune System’s “Brake Pedal”This year’s award in Physiology or Medicine reco...
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

The Chester County Health Department is hosting a Flu and COVID-19 vaccination clinic at Great Valley Middle School (255...
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!

Our recommendations for 2025 fall vaccination schedule. Please do not hesitate to call or text our office at 484-897-71...
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.

📚🍎✨ To all the college students heading back to campus — good luck this academic year! Whether you’re staying close to h...
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!

Food allergies are common—and so is bullying related to them. Research shows that children with food allergies are more ...
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.

Did you know that metal allergies can cause serious complications after medical and dental procedures? For any patients ...
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.

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

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