Leslie:
"Spongiotic" just means "little blisters." This is found in all cases of eczema; in other words, the biopsy just confirmed that you have eczema. The cause remains unknown, as it usually does in such cases.
If
EmbelineEmbeline e doesn't help, ask your doctor about using medication under plastic overnight wrapping, or occlusion. That is a bit cumbersone, but after a few days it often pays big dividends.
Best.
Dr. Rockoff