I have a skin rash that has been present for almost 2 years. It varies in severity and is believed to be a side effect of severe contact dermatitis (It wasn't present and popped up in a construction/welding environment, got better when I left but still lingers). It is affecting my upper torso (front and back) and arms (upper and forearm but not my hands) primarily (sometimes comes back on the back of the knee). Oral steroids help the itching and somewhat help the rash, while topical steroids curb the itching only. Scratching of course makes it infinitely worse. The itching is sometimes so bad I can't sleep for function properly.
On the elbows where the rash is the worst, there is sometimes a cloudy, yellow discharge from lesions that come up (usually due to scratching while asleep I think). The discharge will solidify into a scab of sorts which comes off in the shower.
Doctors have take biopsies, and found no evidence of usual skin conditions. They have concluded that it is Eczema, due to a lack of evidence for other conditions. Eczema creams have no effect.