Dehydration?: After someone has been sick, especially for a week, their body is out of balance. Being dehydrated can contribute to a sour taste. Also sometimes probiotics are needed to help. Get rest, avoid alcohol and caffeine ...And allow your body to heal. One should get evaluated if symptoms persist.
Answered 10/20/2020
5.6k views
Problem with airways: after the flu can cause a sour taste in the mouth. It's very common and usually clears up on its own within a week or two.
Answered 10/20/2020
2.4k views
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