Medical Dermatology

Hives & urticaria

Hives are itchy, raised welts that can appear suddenly and come and go. When they keep returning, a dermatologist can bring real relief — even when the cause can't be pinned down.

Close-up of hives (urticaria) — raised, itchy welts on the skin — treated at Juniper Dermatology in Bend, Oregon

Overview

Understanding hives

Hives (urticaria) are raised, often intensely itchy welts that can show up anywhere on the body. Individual welts usually fade within 24 hours, then new ones appear somewhere else, which can make the problem feel constant. When hives last more than six weeks, they're considered chronic.

Here's something many people find surprising, and reassuring: in most chronic cases — commonly cited as around 70% or more — no specific external trigger is ever found. This is called chronic spontaneous (or idiopathic) urticaria, and in many of these cases the immune system is simply overreacting on its own. The good news is that effective relief does not depend on identifying a cause.

Why no cause is often found — and why that's okay

It's natural to want an answer to “what's causing this?” With chronic hives, that answer often stays elusive — and that doesn't stand in the way of getting better:

  • In roughly 70% or more of chronic cases, no external trigger is identified despite a careful evaluation — this is chronic spontaneous urticaria.
  • In many of these cases the immune system is reacting on its own, rather than to a food, product, or allergen.
  • Because of this, broad allergy testing usually doesn't reveal a cause and often isn't helpful — we test thoughtfully, not reflexively.
  • Most importantly, we can control hives and give you real relief whether or not a specific trigger is ever found.

Things that can worsen hives (even when they don't cause them)

Separate from a root cause, certain everyday factors can aggravate an existing flare. Easing these often helps:

  • Heat, hot showers, sweating, and sudden temperature changes.
  • Stress, poor sleep, and illness or infections.
  • Anti-inflammatory pain relievers (NSAIDs like aspirin or ibuprofen), alcohol, and sometimes tight clothing or pressure on the skin.
  • Scratching and rubbing — which tends to bring out more welts.

Signs & symptoms

What we look for

Raised welts

Pink or skin-colored bumps and patches that can change shape and location; the center may blanch (turn white) when pressed.

Intense itch

Often the most bothersome symptom — and the hardest to ignore.

Come and go

Individual welts typically fade within 24 hours, then new ones appear elsewhere.

Deeper swelling (angioedema)

Sometimes a deeper swelling of the lips, eyelids, hands, or feet that feels more like burning than itch.

Chronic hives

When welts persist or recur for more than six weeks.

How we treat it

Your treatment options

We calm the current flare and build a plan to keep hives controlled day to day — focused on relief and quality of life, not on chasing a cause that often can't be found.

Antihistamine plan

A structured, non-drowsy antihistamine regimen — stepped up in dose when needed — to control itch and welts day to day. The proven first-line approach.

Flare control

Fast-acting treatment to settle a severe outbreak and get you comfortable quickly.

XOLAIR® (omalizumab)

An FDA-approved injectable biologic for chronic hives when antihistamines aren't enough — well established and highly effective for appropriate patients.

DUPIXENT® (dupilumab)

A newer FDA-approved biologic for chronic hives — the first new targeted therapy for the condition in over a decade — another strong option when antihistamines fall short.

Newer advanced options

For antihistamine-resistant chronic hives, additional oral and biologic therapies are expanding what's possible; we'll discuss whether you're a candidate.

Thoughtful evaluation

A careful history to spot the occasional identifiable trigger and rule out other conditions — without unnecessary, low-yield allergy testing.

Trigger & flare guidance

Practical steps to ease the everyday factors (heat, stress, NSAIDs, scratching) that can aggravate a flare.

Emergency guidance

Clear instructions to seek urgent care for any swelling of the lips or tongue, or trouble breathing.

When to see a dermatologist

If hives keep coming back, last for weeks, or interfere with sleep and daily life, a dermatologist can help you get them under control. Seek emergency care for any swelling of the lips or tongue, or trouble breathing.

Schedule with Juniper

Common questions

Hives FAQ

Will you be able to find what's causing my hives?

Often, no — and that's more common than people expect. In up to about 70% of chronic cases, no specific external trigger is ever found; this is called chronic spontaneous (idiopathic) urticaria, where the immune system reacts on its own. We're honest about that from the start, because the encouraging part is that we can control your hives and give you real relief whether or not a cause is identified.

Should I get allergy testing for my hives?

Usually not. Chronic hives are generally not caused by allergies, so broad allergy testing tends to be low-yield and can send you chasing false leads. We take a careful history and test selectively only when something in your story points to a specific cause.

What are chronic hives, and what if antihistamines don't work?

Hives lasting more than six weeks are considered chronic. Antihistamines are the proven first step and can be increased in dose. When they aren't enough, there are two FDA-approved biologics for chronic hives — XOLAIR® (omalizumab) and DUPIXENT® (dupilumab) — plus other advanced options for appropriate patients.

How quickly will treatment help?

Many patients feel meaningfully better within one to two weeks of starting a structured plan. Our focus is on both settling the current flare and keeping hives controlled over time.

Will my chronic hives ever go away?

For many people, yes. Chronic hives aren't necessarily lifelong — they often ease or resolve over months to a few years. In the meantime, the goal is to keep you comfortable and living normally.

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