【案例】今年4月,徐某的朋友艾某在微信朋友圈中发布了一条推荐某面膜的广告。出于信任,徐某和朋友在艾某介绍的商家各自购买了两盒该面膜。使用两次后,徐某和朋友的面部均出现过敏现象。就医后,医生认为是面膜“惹”的祸。面对这种情况,徐某和朋友应该如何维权?【维权建议】针对徐某的情况,本栏编辑特邀请黑龙江建 [Case] ​​In April of this year, Xu’s friend Ai Mou posted an advertisement recommending a mask in the WeChat circle of friends. Out of trust, Xu and friends in the introduction of Ai Mou businesses each bought two boxes of the mask. After using twice, Xu and friends are allergic to the face of the phenomenon. After medical treatment, the doctor thinks it is the fault of “provoking ” mask. In the face of this situation, Xu and friends should be how to defend their rights? [Rights] for Xu’s situation, this column editor invited to build Heilongjiang