Urticaria, commonly known as hives, is a skin reaction characterized by itchy, raised welts (also called wheals). These welts can vary in size—from small spots to large patches—and can appear anywhere on the body.

 
 

Here is a breakdown of what you should know about the condition:

1. Types of Urticaria

Doctors usually classify hives based on how long they last:

 

  • Acute Urticaria: Lasts less than 6 weeks. It is often triggered by an identifiable factor like a specific food, medication, or viral infection.

     
     

  • Chronic Urticaria: Lasts more than 6 weeks and often recurs over months or years. In many chronic cases, the exact cause is never found (this is called “idiopathic”).

     
     

  • Physical Urticaria: Triggered by physical stimuli such as cold, heat, sunlight, pressure on the skin (dermographism), or exercise.

     

2. Common Triggers

While the exact cause can sometimes be a mystery, common triggers include:

  • Allergens: Peanuts, shellfish, eggs, insect stings, or latex.

     

  • Medications: Antibiotics (like penicillin), aspirin, and ibuprofen.

     

  • Infections: Viral infections (very common in children) and some bacterial infections.

     

  • Environmental Factors: Pollen, pet dander, or extreme temperature changes.

     

3. Symptoms to Watch For

  • Wheals: Raised, red or skin-colored bumps that “blanch” (turn white) when pressed.

     

  • Intense Itching: This is the most common symptom, though some hives may sting or burn.

  • Angioedema: Deep swelling, usually around the eyes, lips, or throat. Note: If swelling affects your breathing or swallowing, seek emergency care immediately as this can be life-threatening (anaphylaxis).

     
     

4. Management and Treatment

Most mild cases of hives resolve on their own, but you can manage symptoms with:

  • Antihistamines: Over-the-counter options like Cetirizine (Zyrtec) or Loratadine (Claritin) are the first line of defense to stop the itching.

     

  • Avoid Triggers: Identifying and avoiding what caused the flare-up is key.

     

  • Soothing Measures: Cool compresses, wearing loose cotton clothing, and avoiding hot showers can help reduce irritation.

     

  • Prescription Options: For chronic or severe cases, doctors may prescribe stronger medications like corticosteroids or biologics (e.g., Omalizumab).

     

When to see a doctor: You should consult a healthcare professional if your hives are severe, cover a large area of your body, or persist for more than a few days without improvement

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