Itchy eczema on the body is usually caused by allergy, which can be reasonably treated by general treatment, topical medication, systemic medication and other methods. 1. General treatment: patients are mainly caused by contact with external allergens or internal production of allergens, so they need to actively search for allergens and stay away from allergens and causes; at the same time, appropriately reduce the external stimuli, such as hot water scalding, scratching, wiping and so on. 2. Topical medication: in the acute stage without blisters and oozing, but with itching, glycerite lotion or glucocorticoid cream (mometasone cream, etc.) can be used for treatment, which can play the role of anti-inflammatory, astringent and anti-itching. 3. Systemic medication: for patients with severe itching, oral antihistamines can be used to relieve itching and anti-inflammatory treatment, such as loratadine, cetirizine, etc., but during the period of taking the drug, it is easy to appear drowsiness and dry mouth and other adverse reactions; in addition to calcium or sodium thiosulphate can also be used to slowly injected into the vein, which can play the role of anti-allergy and anti-itching. The above drugs need to be standardized use under the guidance of a doctor. Once the eczema itching is very strong, it is recommended that patients go to the hospital in a timely manner, under the guidance of the doctor for reasonable treatment.