Eczema or Atopic dermatitis, which is the result of allergies; allergies can be caused from contact with perfumes, detergents, food products (like eggs, milk, vegetables, nuts etc), soaps, household chemicals, some fabrics, cleaning compounds and from almost anything that does suits a particular individual.
It can form as an inflammation of the skin that can further lead to scaling, cracking, dryness and itching that might convert to inflated and weeping blisters. It is generally a hereditary skin disorder and very common in infants. Stress or emotional upsets can often be the cause as well.
Apart from its major causes, eczema can happen from some emotional upsets or sometimes even no reason. That is how it is concerned as baffling problem for experts too. However, maximum causes of this skin disorder are reported from allergies and reaction of some food products.