Thanks for staying Online.
I can understand your concern.
Yes, it is true that after stomach flu, one may have problem with bowel movements for short time.
Usually such condition, is temporary.
Yes, to resolve constipation you can take milk of magnesia and prune juice.
Milk of magnesia would work by drawing water into the intestines, and cause movement of intestine.
Prune juice is a great option for relieving constipation and helping you to stay regular. You can drink 4 to 8 ounces of prune juice each morning to stimulate a bowel movement.
You should take plenty of water, Try to go for walk/ physical exercise 4-5 times a week.
In few days, such issue would get resolve.
Hope this helped
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