Two of the most common diseases in summer are bacterial diarrhea, which occurs when the temperature is higher in summer and food is prone to spoilage, or when people are greedy for cold drinks and cold fruits, which can also easily lead to diarrhea, often a bacterial infection. The diarrhea is serious and sometimes accompanied by vomiting and diarrhea, so the stool routine needs to be checked. If elevated white blood cells occur in the stool routine, the diagnosis of gastroenteritis caused by bacterial infection is confirmed, and intravenous antibiotics are needed for better results. For children, intravenous ceftriaxone is recommended, while for adults, intravenous levofloxacin can be used for treatment. Anti-diarrheal medication, such as Simethicone, is also needed. In addition, in the summer, you often blow the air conditioner and fan, it is easy to catch a cold, you can take anti-cold medication for treatment.