What Is The Treatment For Rhinovirus Infection In A Baby?

my 8 month old son was diagnosed with Rhinovirus 2 weeks ago. He started getting a very nasty cough and then after a few days vomiting very large amounts and loosing weight, loss of appetite and not wanting to drink anything. he was admitted to hospital 3 days ago and yesterday morning i found a few little lumps on the back of his ears. i asked the dr and he said, its nothing don t worry. They left, half hour later i changed his nappy and it was all over his torso, it has now gone down his left and arms and have raised circular lumps, which is aggrevated by heat. he had a temp but its staying at 37.6 now. They said it is just a viral rash from his rhinovirus but it is getting worse and its now gone round his mouth.