recover
If you recover, you become well again after an illness or injury.
It was several weeks before he fully recovered.
Recover is a fairly formal word. In conversation and in less formal writing, you usually say that someone gets better.
He soon got better after a few days in bed.
➜ See better
You can say that someone recovers from an illness.
How long do people take to recover from an infection of this kind?
Be careful
Don't say that someone gets better from an illness.
Don't say that someone gets better from an illness.