You're right: Выздоравливай(те) + any one of (по)скорее, (по)скорей, (по)быстрее, (по)быстрей.Hi!
It's been a long time. But now I have a new question. How to say in spoken Russian language: "Get well soon".
The context: My friends has suddenly fallen sick and I just wanted her to recover as soon as possible by giving her my strongest support. That's why I said to her: "Get soon well".
My attempt: "Выздоравливай поскорее"
However, I'm not sure whether it suits.
Thanks in advance for your suggestions!