With the arrival of summer, roadside food stalls have become more and more  popular. Many people choose to eat and chat at the roadside stalls with friends.  But there are hidden health and safety hazards in this comfortable thing. Most  patients with diarrhea have a history of unclean food such as cold dishes,  leftovers, expired foods, and etc. These foods are easily contaminated by  Salmonella or Staphylococcus aureus toxins, causing acute inflammation of the  gastrointestinal tract. Acute gastroenteritis is an acute inflammation of the  gastrointestinal mucosa, which has a short course of disease and is common in  summer. The clinical manifestations usually include a sudden start a few hours  to more than ten hours after eating, manifesting as abdominal pain, diarrhea,  vomiting, or varying degrees of fever, chill, weakness, dizziness, and bitter  mouth. If you have these symptoms, you should seek medical treatment in time.  Any delay may lead to severe dehydration caused by diarrhea. If you have severe  diarrhea or sweat a lot, you should drink some soup to make up for the lack of  water, vitamins and electrolytes. People who are easy to get diarrhea should pay  more attention to food hygiene, the key to preventing diarrhea in summer. The  raw and cooked food in the refrigerator should be separated, and should be  re-cooked before eating. Hands should be washed before and after meals. Fresh  vegetables and fruits should be washed. It is advised to avoid eating roadside  stalls, cold drinks or beer. Air conditioner may cause a large indoor and  outdoor temperature difference, and it is necessary to add or remove clothes in  time to avoid sudden cold and hot. In addition, diarrhea is also closely related  to the patient's own physical condition. If you have weak gastrointestinal  function and immunity, and you are lack of exercise, coupled with unbalanced  diet, it can also cause diarrhea.