Microsoft Certified IT Professional (MCITP) Note All MCITP certifications retired between July 31, 2014, and July 31, 2016. Please check the retired certifications and retired exams pages for the list of certifications and exams. Your retired certification will remain on your transcript.
A. Hives (urticaria) are raised, red spots on the skin that often itch. Hives are usually indicative of an allergic reaction. Hives are a common reaction in people who have allergies. A number of substances can trigger an outbreak of hives, including foods, medications, pollen, animal dander, or insect bites. Hives can also develop as a result of sun or cold exposure, infections, excessive perspiration, and emotional stress. The reason why stress seems to precipitate an outbreak of hives in many people is not completely understood but is likely related to the known effects of stress on the immune system.
Often times hives are an allergic reaction to foods, insect stings, sun exposure, drugs, or plants that can cause an allergic reaction. Other possible causes can be stress or infections. There is also type of hive called angioedema. Angioedema is swelling that happens beneath the skin.