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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Hives

Hives (urticaria) evaluation in Fresno & Merced, CA

Hives are raised, itchy welts that can appear suddenly and shift location within hours. Most cases resolve on their own, but hives that are frequent or long-lasting are worth a closer look.

Acute & chronic hivesTrigger evaluationKids & adults
Hives evaluation in Fresno & Merced, CA
Two patterns

Acute vs. chronic hives

Acute hives

Last under 6 weeks and are often tied to an identifiable trigger — a food, medication, infection, or insect sting.

Chronic hives

Last 6 weeks or longer, often without a single identifiable cause, and may come and go over months.

What we evaluate

Looking for a pattern

Possible allergic triggers

Foods, medications, or other exposures around the time hives appear.

Physical triggers

Pressure, temperature changes, or exercise can bring on hives in some people.

Patterns over time

Timing, frequency, and what seems to help or worsen your hives.

What to expect

Finding a plan that fits

1

History

We talk through when hives appear and how long they've been going on.

2

Testing, when a trigger is suspected

Targeted testing if your history points to a specific cause.

3

Treatment options

We discuss options designed to help manage your symptoms.

4

Follow-up

We check in and adjust the plan as needed.

FAQs

Frequently asked questions

What causes hives?

Causes vary — allergic reactions, infections, physical triggers like pressure or temperature, and in many chronic cases, no single identifiable cause. An evaluation helps narrow it down.

Are hives dangerous?

Most hives are uncomfortable but not dangerous. Hives along with swelling of the lips, tongue, or throat, or trouble breathing, need urgent medical attention.

Do I need testing for chronic hives?

Not always — testing is most useful when your history points to a specific trigger. We'll talk through whether it makes sense for you.

What if antihistamines aren't enough?

There are other treatment options for hives that don't respond well to standard antihistamines. We can talk through what might fit your situation.

Get some answers about your hives.

Book a visit and we'll work with you to understand what's going on.

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.