Antonyms for the phrase "doest a number on" could include "enhance," "improve," "beautify," "repair," and "restore." These words imply positivity and the act of making something better instead of damaging or causing harm to it. When someone or something does a number on a person, it usually means that they have inflicted damage or caused emotional distress. However, using antonyms can help to shift the focus towards repairing the damage that has been done and finding solutions to improve the situation. By choosing positive language, we can encourage an optimistic mindset and promote personal growth and healing.