How do celebrities deal with body hair?

Do you mean men? Most celebrities keep their natural body hair unless they need to remove it for a specific reason, e.g. to appear in a certain role in a film. In such situations, men usually wax or shave body hair.

Do you mean women? Women celebrities when appearing in public or in the media usually wax or undergo electrolysis or laser hair removal if they have excess hair in places they don't want to have it--although legs and armpits can also simply be shaved.