Probiotics are not effective for fever, but can assist in regulating the gastrointestinal tract. Probiotics are beneficial bacteria that can replenish the intestinal flora and can be used to regulate the microecology of the intestinal tract, which can increase the body’s resistance. However, probiotics themselves do not have anti-infective, antipyretic and other effects, so probiotics are ineffective for fever. Probiotics can be used as an adjunctive therapeutic drug for certain febrile illnesses, such as gastrointestinal cold patients in addition to fever, abdominal pain, diarrhea and other clinical symptoms, taking probiotics can regulate the gastrointestinal tract, can relieve the above symptoms. The causes of fever are many, and a variety of systemic diseases can lead to fever, fever should not blindly self-medication, it is recommended that you need to go to the hospital to improve the examination, to be targeted treatment.