1. 风疹：netting 网 | nettle rash 风疹 | nettle 荨麻

2. 风疹块：瘌痢头 favus of scalp | 风疹块 nettle rash | 疖 boil

noun

1. an itchy skin eruption characterized by weals with pale interiors and well-defined red margins
    usually the result of an allergic response to insect bites or food or drugs

    Synonym: urticationurticariahives