Urticaria manifests as a sudden appearance of itchy wheals of varying size and shapes from very small circular lesions to very large irregular areas located on any part or nearly all over the body.
The wheels may disappear within 24 hours even without any treatment, though fresh ones may continue to appear. Severe attacks may be associated with abdominal pain, nausea, vomiting, and headache and in children- high fever.
Urticaria (nettle, rash) causes includes environmental factors, drugs like penicillin, emotional factors or emotional stresses, allergens and alcohol. Hives or medically Urticaria is one widespread allergic response present as pink, itchy and inflamed bumps, which arise on any place of body.
Acute or Chronic Urticaria is categorized on basis of time frame hives takes to breakout. Chronic urticaria or urticaria (nettle rash), exists for more than 6 weeks. Acute urticaria appears only for some hours to few weeks.