I was wondering why i broke out on my face with hives.i ate choc.pudding than a rash came?

Hives: Hives are very common. Although they can be annoying, they usually resolve on their own over a period of weeks and are rarely medically serious. Some hives are caused by allergies to such things as foods, medications, and insect stings, but in the majority of cases, no specific cause for them is ever found. Antihistamines like benedryl or Claritin (loratadine) are helpful.