Keystone Allergy and Asthma Center

03/19/2026

03/19/2026

Camp TAG provides a safe place for children with food allergies, eosinophilic disorders, FPIES, Celiac disease, atopic dermatitis (eczema), asthma, and/or mast cell disorders, and their non-allergic siblings to have fun – with no worries about allergic reactions – and meet other children who share similar experiences. Camp TAG provides peer-to-peer networks, support, gaining independence and confidence, and more - everyone has the opportunity to be with others who live it and get it. It is a bonding and empowering week for all campers and counselors, including parents/caregivers.

Camp TAG is 95% fun and 5% educational, with age-appropriate activities and games each day on food allergies, anaphylaxis, nutrition, the emotional impact of living with food allergies (for children with food allergies and their families), and how to stay safe at school and at home. The curriculum was designed and reviewed by FAACT's Medical Advisory Board.

03/17/2026

Cost Plus Pharmacy online is great to save you $$$ for out of pocket drug costs for many allergy and asthma medications. Browse and check if you would benefit and let our office know to send any scripts.

03/12/2026

If you have milk allergy, avoiding obvious dairy like milk, cheese, yogurt, and butter is important — but milk proteins can also hide in many ingredients on food labels.

Under U.S. labeling laws, milk is a major allergen, so packaged foods should list “Contains: Milk” somewhere on the label — but it’s still helpful to recognize these ingredient names.

Here is a handy table we created for patients with milk food allergy.

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! 🥇⛷️🏂⛸️

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! 🩺✨

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

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.

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

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!

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!