Erythema ab igne is an uncommon dermatosis characterized by erythematous or hyperpigmented reticular patches that appear after prolonged localized heat exposure. We present three cases of erythema ab igne in pediatric patients who presented in March and April of 2021 and share a history of space heater usage while engaging in remote schooling during the COVID-19 pandemic.

中文翻译：

---

COVID-19 大流行期间远程教育的儿科患者出现红斑：病例系列

红斑是一种罕见的皮肤病，其特征是在长时间局部受热后出现红斑或色素沉着过度的网状斑块。我们介绍了 2021 年 3 月和 4 月出现的 3 例儿科患者出现的三例红斑，并且在 COVID-19 大流行期间参与远程教育时分享了使用空间加热器的历史。