Parasites are also a cause of waterborne disease in the United States. Both recreational water (water used for swimming and other activities) and drinking water can become contaminated with parasites and cause illness. Recreational water illnesses (RWIs) are diseases that are spread by swallowing, breathing, or having contact with contaminated water from swimming pools, hot tubs, lakes, rivers, or the ocean. The most commonly reported RWI is diarrhea caused by parasites, such as Cryptosporidium and Giardia intestinalis. Giardia intestinalis is also a common parasite found in drinking water. Both Cryptosporidium and Giardia intestinalisare found in the fecal matter of an infected person or animal. These parasites can be spread when someone swallows water that has been contaminated with fecal matter from an infected person or animal. Individuals with compromised immune systems who come into contact with these parasites can also be at greater risk for serious illness.
来统一回复下我查到的资料，以免以后有人遇到同样的担忧。 Where Are Brain-Eating Amoebas Found? Naegleria loves very warm water. It can survive in water as hot as 113 degrees Fahrenheit. These amoebas can be found in warm places around the globe. N. fowleri is found in: Warm lakes, ponds, and rock pits Mud puddles Warm, slow-flowing rivers, especially those with low water levels Untreated swimming pools and spas Untreated well water or untreated municipal water Hot springs and other geothermal water sources Thermally polluted water, such as runoff from power plants Aquariums Soil, including indoor dust Naegleria can't live in salt water. It can't survive in properly treated swimming pools or in properly treated municipal water. 总的来讲，用自来水一两次问题不大，但还是应该坚持用纯净水、蒸馏水或者烧开放凉的水会更放心。谢谢大家的热心相助！！
别听楼下的用自来水的，自己去查就知道了，不建议用自来水，担心不是什么微生物而是虫卵，偶尔一次没关系，但时间长了容易中招
没觉得有趣，就是觉得洗澡的时候鼻子里也会进水，洗澡的时候不怕，洗鼻子就是同理，很简单。
喝了有胃酸保护，冲鼻子可没类似胃酸的帮你，自来水里可能有虫卵
这个不一样的，水里可能有那种食脑菌，喝下去没事因为有胃酸，但是如果从鼻腔可以进入大脑。有几期因为这个死亡的case。所以还是应该用纯净水或者蒸馏水的
美国自来水里是可能有各种寄生虫卵的，giardia最常见，Naegleria fowleri比较稀少，但最近几年时不时就有中招上新闻的，我还以为是常识。另外说的是寄生虫不是细菌，fyi家用的过滤系统有些是可以过滤寄生虫的。
Parasites are also a cause of waterborne disease in the United States. Both recreational water (water used for swimming and other activities) and drinking water can become contaminated with parasites and cause illness. Recreational water illnesses (RWIs) are diseases that are spread by swallowing, breathing, or having contact with contaminated water from swimming pools, hot tubs, lakes, rivers, or the ocean. The most commonly reported RWI is diarrhea caused by parasites, such as Cryptosporidium and Giardia intestinalis. Giardia intestinalis is also a common parasite found in drinking water. Both Cryptosporidium and Giardia intestinalisare found in the fecal matter of an infected person or animal. These parasites can be spread when someone swallows water that has been contaminated with fecal matter from an infected person or animal. Individuals with compromised immune systems who come into contact with these parasites can also be at greater risk for serious illness.
你应该换个医生了吧
这个说得对，自来水理论上是安全的。因为是处理过的。洗澡的时候鼻子进水和冲鼻子也其实是不一样。所以小心为妙的话还是不好用自来水冲鼻子。
简直无语， hot tap water是不建议食用和烹饪的，自己google一下。
想用自来水就用冷水煮开放凉，直接用冷水中招的几率其实不大，但碰到就是百分之百。
自来水当然可以用来做饭，但是自来水的冷水和热水是有区别的，你自己去google，epa警告过绝对不要用热水龙头的水做饭和饮用，特别是给婴儿和孩子饮用，这其实是常识吧。
我要告诉你的是水有可能从你的鼻腔进入大脑，直接吸收更可怕，特别如果你在东北老区，譬如纽约，不过看看120度的热自来水还是算了。。
这里都是建议设定华氏120度的，因为怕烫伤，没听说谁设摄氏120，如果你家是，那是个例，不能代表大多数
我第一买也是直接冲了自来水，不舒服。后来就注意用烧开过的水了。还是要注意一下的，之前这次还是let it go了
https://www.webmd.com/a-to-z-guides/news/20181210/brain-eating-amoeba-tied-to-tap-water-in-neti-pot
Google一下那么难吗
我洗脸的时候顺便洗鼻子 看了文章怕怕
可能您家里的是您特制的，普通water heater原理您Google一下就行。