The mossy appearance of eczema is not necessarily a sign of seriousness, but may be a symptom of chronic eczema. Eczema is an inflammatory reaction of the skin caused by internal and external stimuli. Chronic eczema is mostly caused by acute eczema or subacute eczema, due to the local slight stimulation will cause persistent chronic flare-ups, will cause skin dark red spots, as well as scratches, scales, at the same time, the skin becomes thickened and rough, with varying degrees of mossy changes. So eczema being mossy is not necessarily a sign of seriousness and should be recognized correctly. Chronic eczema can be treated with topical glucocorticoid drugs under the guidance of a doctor. Specifically need to go to the hospital, clear condition after the reasonable use of drugs.