Aren't you feeling well 你觉得不舒服吗？

How are you feeling today? 你今天感觉怎么样？

Do you feel better now? 你现在感觉好点儿了么？

Any better 好点儿了么？

You'd better see a docter 你最好看一下医生

You'd better have a good rest 你最好休息一下

I hope you will be well soon 祝你早日康复

You are looking better day by day 你的气色一天比一天好

Take good care of yourself 请保重