1
general::
Improve; recover one's health. For example, I just started studying Japanese, and I hope to get better soon, or The doctor said I could expect to get better within a couple of days. Also see GET WELL.
American Heritage Idioms
2
general::
Phrase(s): get better
to improve. • I had a bad cold, but it’s getting better. • Business was bad last year, but it’s getting better. • I’m sorry you’re ill. I hope you get better.
McGrawhill's American Idioms And Phrasal Verbs