He welcome to HCMForum. Some times it is commen to have vomitings to children and adults during fever
. it may be due to medicines.
the way you are serving the medicines is o.k. no perticular way is necesory. but only thing to be remembered is you have to give slowly.
Now to controle vomitings you give him antiemetic tablets with the advise of your doctor. if not controlled may require injection.
there may be other fevers like dengue
with vomitings. but it is rare