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.
Viral gastroenteritis is the second most common illness in the United States after upper respiratory infections such as colds. Most babies will come down with the stomach flu at least twice a year, more often if they're in daycare. Kids often enjoy a boost in their immunity after they turn 3 years old and may not contract it as often.