What Causes Itchy Rashes All Over The Body?

Hi Doctor,

I am getting unbearable itch rash all over my body. I am itchy on my legs upper and lower, on my sides and buttocks also my back sometimes on my arms and neck.

Just to let you know I am Anaphylactic and I carry Anapen's with me at all times. I am allergic to animals and dust ans sea food which I do avoid. I am getting a full battery of tests this coming Tuesday.

My life right now is to say the least is unbearable and I can take much more of it, it's getting me down. I am just worried to maybe something alot more serious... What's your view Doctor?

Thank you kindly in advance...
John B.
Ireland.