You might want to mix cinnamon with some old fashioned glue froma. Glue stick (think kiddy arts and crafts). Make it into a paste and apply it to the area.
Also, try placing a fan nearby to keep the air moving and keep that area of the plant dry (it can't hurt).
I had one plant that had a chunk ripped out (I tried to get the old bloom stalk out and it ripped out a huge chunk! Eep). I slapped on a cinnamon poltice and let it all dry. Now that part is buried in the medium and the plant is growing huge roots and is super happy. Best of luck! And please keep us updated
!
Ryan