A few welts on my skin that come and go but now 2 days later have full blown hives. no pain just itching. taking anti-histamines. should i b worried?

Hives discussion: Hives are usually not worrisome, unless associated with other features, such as pain/pressure (as opposed to itch), fever, unintentional weight loss, hives lasting more than 24 hours, and hives that leave scars. The most common associations with new onset hives are food and medication; however, there are a lot of causes of hives