My daughter of 2 yrs old is having fever since last 4 days. It was high for first 2 days, now it ranges around 100F. Doctor said to wait till sunday i.e today and then she might suggest some tests. Shes crancky amd not having food and at times says that shes having pain in tooth. What could be the reason for fever? Shall we go for blood tests after doctors advise? Please help