Ice On Upset Stomach Is Ice Cream Good For You When You Have The Following Symptons?

Is ice cream good for you when you have the following symptons? - ice on upset stomach

My sister has a stomach upset, but rarely Barfs, fever, headache, fatigue and anorexia. It has an inexplicable desire for ice cream, but a person can eat ice cream when they are followed symtons? I think she has the flu, as I saw in my book Health. When you reply, please give your hand!