I am so incredibly itchy. My fingers are just itching to start itching. I'm covered with a nasty, red, and very itchy rash on my arms and legs, and it's been there since Saturday night, and it's spreading. It hasn't been this itchy though. I've been trying hard to figure out what is causing it, and so far I've ruled out a change in soap or laundry detergent and softener, scarlet fever, rosacea, poison ivy or poison oak, impetigo, ringworm, chickenpox (but not shingles), eczema, celiac, atopic dermatitis, and Lyme Disease. So please, diagnose me so that I don't have to go to the doctor. Benadryl helped a bit last night, at least so that I could sleep.