A 'few days': The 'stomach-flu' or viral gastroenteritis is usually self-limiting and appetite should return soon (in next 1-2 days). If it lasts longer, your doctor may consider further work-up.
Answered 2/27/2013
5.8k views
Gastroenteritis: A stomach virus will usually last about 2-3 days but can last about 5-7 days. Give yourself a week to feel completely back to normal.
Answered 1/5/2019
5.8k views
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