I havent played the sims 3 in awhile and the first night in game was a full moon. I am not entirely sure how to humanize my sim through cheats or whatever means necessary. How do I get my town back to normal with all my sims human and intact?

I have nraas

If you can play through the night, full moon zombification should wear off on them one by one as the sun comes up the following morning. There is also a command, not mod related, available on the active household's mailbox (shift-click I think?) with testingcheatsenabled that should offer to remove the state from all sims in town entirely. That won't stop others from being zombified moving forward, though.

The zombies that pop up at the full moon (temporary zombies) are created by applying the negative moodlet "zombiefied" (I think I spelled that right). To cure them use your favorite means of clearing out a negative moodlett (Master Controller, cure potions, sunlight charm, moodlet manager, etc.). The moodlet should go away on its own at 6 a.m. the next day (although sometimes if you save and quit out during a full moon the moodlet will stick around).

If you'd like to get rid of zombies for good the No Zombies mod should still work (although I only use the add on to disable zombification from eating the 'brain freeze' quick meal so I can't confirm).