Hepatitis Overview. Viral hepatitis, including hepatitis A, hepatitis B, and hepatitis C, are distinct diseases that affect the liver and have different hepatitis symptoms and treatments. Other causes of hepatitis include recreational drugs and prescription medications.Hepatitis type is determined by laboratory tests.epatitis Overview. Viral hepatitis, including hepatitis A, hepatitis B, and hepatitis C, are distinct diseases that affect the liver and have different hepatitis symptoms and treatments. Other causes of hepatitis include recreational drugs and prescription medications.
Severe hives can be caused by many different factors including medications, stress, depression, temperatures (see cold hives and heat hives), foods (egg whites for my toddler), food additives (like yellow number 5) and even pollen or hay fever and illnesses.
They are frequently caused by allergic reactions; however, there are many nonallergic causes. Most cases of hives lasting less than six weeks (acute urticaria) are the result of an allergic trigger. Chronic urticaria (hives lasting longer than six weeks) is rarely due to an allergy. The majority of chronic hives cases have an unknown (idiopathic) cause. In perhaps as many as 30â40% of patients with chronic idiopathic urticaria, it is caused by an autoimmune reaction.