I came down with a fever while I was at work because I just got the COVID vaccine, so I took some medicine for it.
ーI came down with a fever while I was at work because I just got the COVID vaccine, so I took some medicine for it.
「コロナのワクチンを打ったばかりで、職場で熱が出たので解熱剤を飲んだ」
to come down with a fever で「熱が出る」
to get the COVID vaccine で「コロナのワクチンを接種する」
medicine for a fever で「解熱剤」
to take some medicine で「薬を飲む」
ご参考まで！
カナダ 
