Viral diarrhea can generally be cured in 5-7 days after regular treatment, but the specific length of treatment is related to the type of disease, physical condition and care measures of the patient. Viral diarrhea is an acute inflammatory disease caused by infection of the intestinal tissues with viruses, such as rotavirus, adenovirus, astrovirus, etc. The main symptoms of patients are fever, malaise, nausea, diarrhea, loose stools, etc. For patients with these diseases, the specific type of causative organism can be identified through blood and stool culture tests, and then targeted antimicrobial agents can be used for anti-infective treatment and symptomatic treatment. If the patient has no other abnormalities, he or she can usually be significantly relieved or even cured in about 5-7 days after active treatment. However, if the patient’s physical condition is poor and complicated, then the specific recovery time will be extended accordingly. During the treatment period, patients should improve their dietary structure, choose more easily digestible and light foods, and avoid spicy, cold and other stimulating foods, which can help relieve the symptoms and promote recovery.