His whole body was itchy, he thought it was an allergy and was diagnosed

What Are Hives (Urticaria)?

Hives, also known as urticaria, are itchy, raised welts that appear on the skin. They typically range in color from pink or red to skin-toned, depending on your complexion. On brown or Black skin, they may appear slightly lighter or darker than your natural tone.

These welts can sting or feel painful, and are often triggered by an allergic reaction to food, medication, or environmental irritants. Most cases of hives are temporary and mild, often resolving on their own or with over-the-counter allergy medication. However, chronic or severe cases may require medical attention.

Common Causes of Hives

Hives are most frequently caused by an allergic reaction. When your body encounters a trigger, it releases histamines — chemicals designed to defend against perceived threats. In some people, this release leads to swelling, itching, and welts.

Common triggers include:

• Pollen

• Foods (such as nuts, shellfish, or dairy)

• Medications

• Insect bites or stings

• Animal dander

However, not all hives are caused by allergies. Other potential causes include:

• Stress

• Exercise

• Tight clothing

• Illness or infections

• Temperature extremes

• Excessive sweating

Because hives can have so many different triggers, the exact cause is often difficult to identify.

Who Is Most at Risk?

People with known allergies are at a higher risk of developing hives. You may also be more vulnerable if:

• You’re taking certain medications

• You’re exposed to unknown allergens

• You have an underlying illness or infection

• You have a personal or family history of allergic conditions

Symptoms of Chronic Hives

Hives can appear suddenly and disappear within hours—or they may persist. In chronic cases, symptoms may continue for more than six weeks and can recur for months or even years.

Typical symptoms include:

• Clusters of raised welts (weals) that appear anywhere on the body

• Welts that are red, purple, or skin-colored depending on your skin tone

• Welts that change shape, size, or location

• Intense itchiness (pruritus)

• Swelling around the lips, eyes, or cheeks (known as angioedema)

• Flares that are triggered by heat, exercise, or stress

Treatment Options and Relief

To treat hives effectively, your doctor will first confirm the diagnosis—usually by performing a physical exam. In some cases, blood or skin tests may be recommended to identify potential allergens.

For mild hives that aren’t linked to allergies or serious conditions, relief may include:

• Taking antihistamines such as diphenhydramine (Benadryl) or cetirizine (Zyrtec)

• Avoiding known irritants and allergens

• Not scratching the affected area

• Avoiding hot showers or baths

• Soaking in a lukewarm bath with colloidal oatmeal or baking soda

When to Seek Emergency Help

If your hives are severe, long-lasting, or interfere with daily life, consult a healthcare provider.

Important: If you experience hives as part of a severe allergic reaction (anaphylaxis), seek emergency care immediately. Symptoms of anaphylaxis include:

• Difficulty breathing

• Dizziness or fainting

• Swelling of the tongue, lips, or throat

Final Thoughts

While hives are often harmless and short-lived, they can sometimes signal a more serious issue. Pay close attention to your symptoms and triggers, and always speak with your doctor if your condition becomes chronic or severe.