Are you feeling better? (if someone is sick)

is it ok just - Sen daha iyi?

And how do you say - Get well soon

Many thanks for someones kind help,

My try:

Are you feeling better?

Daha iyi hissediyor musun?

Get well soon

Geçmiş olsun

You can also see that lesson for more greetings and expressions in Turkish 

http://www.turkishclass.com/turkish_lesson_6

Many thanks zizoo and thanks for your advice, I will check the lesson 6...