This are type of Skin rashes which is mainly formed due to IgE mediated allergic reaction. This is formed when allergens activates the mast cells in the skin. When this episodes lasts for less than 6 weeks then it is called Acute urticaria and when lasts more than 6 weeks called Chronic urticaria. Urticaria sometimes … Continue reading Urticaria/Hives – Clinical features | Pathophysiology & Causes | Management