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.
Depending on the cause, your symptoms can last from 1 to 10 days. The stomach flu (code name: gastroenteritis) is usually caused by any number of different viruses that can attack your gastrointestinal system. Itâs not caused by the influenza virus, which gives you the seasonal flu.