The diarrhea of ​​blood in dogs does not necessarily mean detoxification. It may be in the middle or late stages. It is best to take your dog to the pet hospital for examination and treatment in time to avoid missing the opportunity for treatment and risking his life. Parvovirus is the most serious on the fourth and fifth days. At this time, you should pay more attention to the dog's condition, be sure to treat it actively, and spend more time with the dog and encourage it. If the dog can survive it, it will slow down. Get better slowly.