Hives or welts that come and go
Overview
Hives are raised, itchy, red or skin-colored welts that appear suddenly on the skin and can change location, size, or disappear and reappear within hours. These temporary skin bumps, also called urticaria, typically develop as an allergic reaction and can range from small spots to large patches across the body.
Common Causes
Hives that appear and disappear can be triggered by allergic reactions to foods, medications, or environmental factors like pollen or pet dander. Stress, hormonal changes, extreme temperatures, and tight clothing can also cause these temporary skin reactions. Sometimes physical activities like exercise or even simple pressure from scratching can bring on episodes. In many cases, the exact cause remains unknown, but the welts typically fade on their own as your body's immune response settles down.
Severity Levels
Mild: Small, scattered hives that cause minor itching and don't interfere with daily activities. The welts are few in number and may come and go occasionally.
Moderate: Multiple hives covering larger areas of the body with noticeable itching that may disrupt sleep or concentration. The welts appear more frequently and persist for longer periods.
Severe: Widespread hives covering most of the body with intense itching that significantly impacts daily life and sleep. The condition may be accompanied by swelling of the face, lips, or throat, requiring immediate medical attention.
Medical Attention
Seek immediate medical attention if hives are accompanied by difficulty breathing, swelling of the face or throat, dizziness, or rapid pulse, as these may indicate a severe allergic reaction. Contact your doctor if hives persist for more than a few days, cover large areas of your body, or are accompanied by fever. You should also see a healthcare provider if over-the-counter antihistamines don't provide relief or if you experience recurring episodes without knowing the cause.
4k+ Collection Centres
90k+ Biomarkers Tested
Early Detection