这是一个提建议的的作文,你可以用到一些提建议的句型,例如:you can .../you should.../if you can ...it's better.
但是作为一篇作文还是要有的开头和结尾的,下面你可以参照一下:
Dear——,
I know you have a feverso that you can't ...I think these tips can help you.
First of all, you can...
Then ,you should...
All in all ,if you can ...
Yours,
——
望采纳谢谢!