Diarrhea that is still present after taking montelukast needs to be treated with a change in medication or in combination with other medications such as levofloxacin. This situation requires further identification of the cause of diarrhea, and in order to avoid masking the symptoms of diarrhea, it is recommended to seek medical attention. This is because taking these drugs alone will not improve the condition, and the cause of the diarrhea needs to be identified and treated. For example, if you have infectious diarrhea, you need to take antidiarrheal medication after correcting the water and electrolyte disorders caused by the diarrhea. It also needs to be combined with anti-infective drugs for treatment, only after the infection is better controlled, the diarrhea can be better relieved. It is recommended to take anti-infective drugs under the guidance of the doctor to cooperate with the treatment, such as the application of levofloxacin and so on. Viral enteritis can also take ribavirin and other drugs with the treatment, the specific use of drugs need to be under the guidance of the doctor. During the period of illness, the diet should be based on light and easy to digest food, you can eat soft noodles, yam porridge and barley porridge and other food, to promote the recovery of the disease is helpful. It is also necessary to drink plenty of warm water or oral rehydration salts to prevent possible disorders of water-electrolyte balance.