Signs Of Eczema

Itch - This is the main symptom. A rash without an itch is generally not due to eczema.

Thickening - The skin of areas of eczema that have been inflamed for a while are usually thicker than other skin. This occurs as a protective response of the skin to the repeated trauma of scratching.  

Eczema often affects the skin in areas around joints such as the elbow, behind the knees and in front of the ankles.  Commonly one will see splits in the skin here, as the thickened skin is unable to bend flexibly as it would normally.

Blisters - With eczema there is less adhesion between the skin cells, particularly in the upper layers of the skin. This contributes to scaling and makes it easier for skin bacteria to get into the deeper layers, between the gaps. It also makes it possible for tissue fluids to ooze between the cells and, if sufficient, to gather into collections or blisters.