Fresno:7407 N Cedar Ave # 102, Fresno, CA 93720(559) 369-4421Fax (559) 369-4418
Merced:105 W El Portal Dr, Suite B, Merced, CA 95348(209) 349-8526Fax (209) 349-8518
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Stinging insect allergy

Stinging insect allergy in Fresno & Merced, CA

A reaction to a bee, wasp, hornet, or fire ant sting that goes beyond normal swelling and pain — hives, swelling away from the sting site, or trouble breathing — can point to a true insect venom allergy. Testing, and for some patients venom immunotherapy, can help you manage that risk going forward.

Venom testing on-siteImmunotherapy availableKids & adults
Stinging insect allergy testing in Fresno & Merced, CA
Know the difference

Types of sting reactions

Normal local reaction

Pain, redness, and mild swelling right at the sting site — common and usually resolves on its own.

Large local reaction

More extensive swelling around the sting site, sometimes spreading over a day or two.

Systemic/allergic reaction

Hives, swelling away from the sting site, dizziness, or breathing difficulty — this is the pattern that points to a true allergy and needs evaluation.

How we help

Testing and long-term options

Venom skin & blood testing

Identifies which specific insect venom you react to.

Epinephrine guidance & action plan

Clear guidance on carrying and using an epinephrine auto-injector if it's right for you.

Venom immunotherapy

A long-term option for some patients, designed to help reduce the risk of a serious reaction to future stings.

Immunotherapy →
What to expect

Building your plan

1

History of your reaction

We talk through exactly what happened after the sting and how quickly.

2

Testing

Venom testing to confirm and identify the specific trigger.

3

Plan

Avoidance guidance, epinephrine planning, and/or immunotherapy depending on your results.

4

Follow-up

We check in as your plan takes shape.

FAQs

Frequently asked questions

How do I know if my reaction was serious?

Hives, swelling away from the sting site, dizziness, or trouble breathing after a sting are signs of a systemic allergic reaction and warrant an evaluation — seek emergency care right away if breathing is affected.

What is venom immunotherapy?

It's a series of injections containing small, gradually increasing amounts of insect venom, designed to help your immune system respond differently to future stings. It's a longer-term option we discuss based on your testing and history.

Should I carry an epinephrine auto-injector?

For many people with a confirmed venom allergy, yes — we'll talk through whether it's right for you and how to use it.

Can children be tested for insect sting allergies?

Yes — we evaluate and test children as well as adults.

Take insect stings seriously.

Book a visit and we'll work with you to understand your risk and build a plan designed to help.

General information only — not medical advice. Please consult a qualified provider for assessment. Sierra Allergy works with many insurance plans; contact us to verify your coverage.