Dear Lihua,
I'm sorry to hear that you are ill.Your family tells me that you are progressing nicely ,and that you will be out of the hospital in about ten days.
You'd better have a good rest and do some exercises because it is good for you.And you should eat more fruit and vegetables and drink more water .You don't worry about your study .I'll help you.And I hope you will soon recover.
In the next day or so you will receive a little package from me.I hope you like it,and that it will help to pass the time more pleasantly.
I do hope you will not rush your recovery in that you will think of yourself,for a chance,and have a good rest before your return to your regular work.
Yours sincerely,
Tom