If you have gastroenteritis, it is best to eat foods that are easy to digest. You can drink some millet porridge. It is best not to eat rice, as rice is not easily digestible, but you can drink some rice porridge, which is still a soft food and relatively easy to digest.

Additionally, you should avoid greasy foods and it's best not to drink milk because dairy products can also easily lead to diarrhea. Moreover, patients who are lactose intolerant may experience worsened symptoms of gastroenteritis after consuming milk.

When suffering from gastroenteritis, it is important to maintain a light diet and, if necessary, take some anti-inflammatory drugs or probiotics. Generally, recovery can be achieved in about two to three days. Also, make sure to rest in bed and avoid eating fruits, as fruits contain rough fiber that can exacerbate symptoms of diarrhea.