I've had my adenium for 11 years. Last summer it had gotten large and blocked the drainage holes in its pot. I discovered it was mushy on the bottom as I prepared to repot it. In October I tried to cut off the mushy parts. Then in November I cut it again. In January I had to whittle on it some more. All of the parts have healed except the ones in the pictures. I've been putting ceylon cinnamon each time on it, but a week ago yesterday, when the last surgery was performed, I didn't and I see mold starting to grow (see picture). I'm worried about the moist areas. Thank you in advance. What do I need to do next?