Are you talking about Ari (the green maid fox) or Maddie (The brown big tit kitsune with the apron)?
Ari just checks the door to see if your sanity is low and will leave if your sanity is high a little while after.
Maddie will either stay on a cam not letting you do anything there (except watching Nile) or stay in a door and keep it open so other girls can attack you. The way you deal with Maddie is
using the microwave in the left camera so she leaves either the camera or door
If Remember correctly the microwave breaks if you use it too much so try to not use it too much. I personally only use it when she is in the doorway, because even if she is blocking a task camera you won't get a game over unless you have 3+ task failing so you cna just wait and try to keep that 1 camera task as the only one that fails