The same happened to my kid years ago. "昨天去打疫苗的时候医生给开了一个药膏让每个星期在脖子上涂一次,回来之后我一 看那上面写着是治疗athlete's foot的…………感觉怪怪的,所以就没有用。" The doctor said the following too. "说最好不用baby powder, 说怕呼吸进去," We just tried to wipe it dry many times a day. and 等宝宝大一点,脖子能直起来了就不会红了,was also true.