Fortunately the hives aren't terribly itchy, and they aren't on my face, but I really have no clue where they came from... this is what web MD has to say about hives...
"Urticaria, also known as hives, is an outbreak of swollen, pale red bumps or plaques (wheals) on the skin that appear suddenly -- either as a result of the body's adverse reaction to certain allergens, or for unknown reasons.
Hives usually cause itching, but may also burn or sting. They can appear anywhere on the body, including the face, lips, tongue, throat, or ears. Hives vary in size (from a pencil eraser to a dinner plate), and may join together to form larger areas known as plaques. They can last for hours, or up to one day before fading." (if you read farther they mention 6 weeks..... but since this isn't bikini season I don't really care!)
This was what happened when I encased with CIM Unique Cirrus glass... I thought that glass stayed transparent.. (I'm sure I've encased with it before???) Anyway ..I spent for ever encasing some copper ribbon only to pull this out of the kiln. The second bead was encase using lite aqua... much closer to what I was expecting!