it will do him/her good
Le sentará bien.
It will do you good.
Este sombrero le sentará bien a ella.
This hat will suit her well.
Le sentará bien estar un rato dentro.
It will do him good to be inside for a while.
— La strada (1954)
Un poco de aire le sentará bien.
A little fresh air will do him good.
— Rebeca (1940)