Generally, the causes of red itchy body in children are mainly due to the following diseases in children. The first is caused by children suffering from urticaria, on the basis of children are allergic, suddenly contacted or eaten allergens, will often appear urticaria, which will show a piece of red itchy body, and some even cause angioedema, for this situation, you can give children timely application of loratadine to relieve. The second is due to children suffering from eczema symptoms, children suffering from eczema, will also cause a piece of red itchy body, and there will even be fluid oozing, you can give children timely application of cypress, honeysuckle and other drugs boiled water, and then wet compresses.