My son is 3yo and has a temp of 39.3, he has had this for 4 days and also has a cough, complains of sore head and stomach and is very disoriented. He is lethargic and sleeping all day and is not drinking,eating or going to the toilet. What are your thoughts? We have taken him to a doctor and they think it is a virus, but his symptoms are not getting better, they are getting worse. He also has a red rash around his mouth and nose.