Worthington Springs, Florida. Worthington Springs is a spring and town in Union County, Florida, United States. The population was 193 at the 2000 census. According to the U.S. Census Bureau's 2004 estimates, the town had a population of 199. Contents.
Causes. While the cause of chronic idiopathic urticarial is unknown, the reaction may be caused by certain triggers, including pain medications, infection, insect bites or parasites, exposure to heat, cold or sunlight, stress, consumption of food or alcohol, or pressure on the skin.Common symptoms:hile the cause of chronic idiopathic urticarial is unknown, the reaction may be caused by certain triggers, including pain medications, infection, insect bites or parasites, exposure to heat, cold or sunlight, stress, consumption of food or alcohol, or pressure on the skin. Common symptoms:
Autoimmune Urticaria: Introduction. Skin swelling, redness and itching caused by autoimmune disorders. An autoimmune disorder is a malfunction of the immune system which causes it to attack itself. In the cause of autoimmune urticaria, the body's own immune system attacks the skin....esearch the causes of these diseases that are similar to, or related to, Autoimmune Urticaria: 1  Idiopathic urticaria without angioedema. 2  Chronic urticaria. 3  Occult infection (e.g., sinusitis, oral infection, cholecystitis, vaginitis, prostatitis, hepatitis, HIV, tinea manus or pedis). 4  Malignancy. 5  Thyroid disease.