The parvovirus is the smallest virus. One of its species called canine parvovirus affect dogs especially puppies. There are no anti viral treatments available. The doctor only treat the symptoms of the infection. The parvo bath will disinfect the puppy from topical infections not systemic infection. You can go for this bath but for the treatment of parvovirus keep in touch with the vit. For more details, visit Parvovirus.