Hi I am Dr.kadhir, Tamiflu
is not indicated unless there is high index of suspicion that the child may have swine flu
. Even other viral infections could cause high grade fever
. It is not sure that your elder daughter had swine flu and also i don't know on what basis she was started on tamiflu.
i addition the dose also differs between both and also use should know the side effects of this drugs when used inappropriately.
My advice is to see a pediatrician
first and if he has high index of suspicion than go with his prescription, otherwise tamiflu is not advised as most other viral illness subside by symptomatic treatment .