Difference between contact dermatitis and eczema

The difference between contact dermatitis and eczema lies in the following aspects: 1. In terms of pathogenic factors, contact dermatitis is mainly caused by an allergic reaction caused by contact plaster or cosmetics. There are many causes of eczema, which can be caused by genetic factors, or by allergic factors, or by mental factors such as stress, stress, etc., or by severe medical diseases associated with it, such as heart failure, kidney failure, leukemia, etc. 2. The manifestations of rash, contact dermatitis rash, clear boundary, asymmetric distribution. And eczema rash boundary is not clear, often symmetrical distribution.