Yesterday I drunk tap water in Ho Chi Minh. I knew it is unsafe to drink it, but only after I gulped down a cup of water did I notice it was tap water. Since it is safe in my country, I just drunk it unconsciously...

I believe that it won't get you into anything serious in most chances. But in general, is there anything you should/could do after recognizing to gulp down tap water in a country where it is unsafe? For example should I change what to eat for a while or should I not eat anything, etc...?

  • Not sure is duplicate, but definitely related: travel.stackexchange.com/questions/2589/…
    – JoErNanO
    Jun 5, 2017 at 12:56
  • I think your best bet is to wait for the symptoms, if any.
    – JoErNanO
    Jun 5, 2017 at 12:57
  • Probably a good idea to get a hold of appropriate medication for stomach discomfort and adequate supplies to safely rehydrate yourself. If you don't get sick, then you have some unnecessary purchases. If you do, you'll be extremely thankful. Jun 5, 2017 at 17:53
  • 2
    Possible duplicate of How to prevent "Delhi Belly"?
    – Giorgio
    Jun 5, 2017 at 22:01
  • 5
    I don't think this question is a dupliate as 1) this question is strictly limited to tap water, and 2) this question is focused on "after-the incident" while the linked question is mostly on "before-the-incident".
    – Blaszard
    Jun 5, 2017 at 22:05

1 Answer 1


Nothing can be done afterwards, other than watch for any effects of drinking contaminated water. You may experience immediate gastrointestinal and stomach illness, such as cramps, nausea. vomiting, diarrhea. Should you believe you've been exposed to diseases that are waterborne (e.g., dysentery, typhoid, cholera, Guinea worm, cryptosporidium, cylcosporiasis, giardiasis, hepatitis E), seek medical help.


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