Skin nick disease namely artificial urticaria, can happen at any ages, children is not exceptional also, often first skin Sao itchs or glowing, catch via scratching after delimit gently or chafing, appear linear wind is round.

• 皮肤划痕症即人工荨麻疹，可发生于任何年龄，儿童也不例外，往往先有皮肤瘙痒或灼热，经搔抓轻划或摩擦后，出现线状风团。