“出疹”的英语？

我不知道是什么东西使我的脸部出疹?I wonder what has set up this rash on my face?UVA看起来也是导致皮肤晒伤出疹、光敏性疾病恶化的主要原因.UVA also seems to be primarily responsible for causing photodrug eruptions and exacerbating photosensitivity in diseases....