Have had the same thing , You can try straight peroxcide on the spots then coat with cinnamon to try and dry them up .Blot when peroxcide is done fizzing .
The other option is to take an exacto knife and section the spots out and then use the cinnamon on the cut edges to dry them . If the spot gets too close I would remove it for sure or rot will get the new growth . Sorry know how you feel . Gin