SIDE EFFECTS: Dry lips and mouth, minor swelling of the eyelids or lips, crusty skin, nosebleeds, upset stomach, or thinning of hair may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
Duration of stomach flu depends on the severity of the attack. The condition may become worse in case of infants, young children and elderly who cannot drink sufficient fluids to compensate for dehydration experienced during the illness. For these people, stomach flu can last for 3 weeks or more.
Take measures to prevent yourself from spreading the stomach flu to others. Youâre most contagious when youâre feeling the worst and a few days afterward. The bug can stay in your stool for up to two weeks. Wash your hands often and stay home from work or school for at least three days after you feel better.