Hai im Dr.Subramanian Welcome to Hcm Viral fever are the most common problem that usually panic the parents and some times docs too. It usually spreads from one to other due to droplet infection. Fever is a common symptom of viral illness for with oral paracetamol or if very high ibuprofen in appropriate doses should be given. There are several forms and strains of viruses, of which few are very fatal. Usually all viral illness are self limiting in nature. If the general condition of the child is better and eating well, he is passing adequate amount of urine, no new rashes in his body, you need not worry, the disease will settle down. If you feel he has the above complaints consult your doc immediately. Take care.