What should I do when oral growth keeps coming back after surgery?

Feeling overwhelmed, I went to see my regular dentist for one follow up appointment yesterday , as am still under the care of my periodontist, I just found out that my growth is coming back again for the third time , so am scheduled to see my periodontist until December, as the surgery that I had in Feb was a benign , the second one it grew back ,but my Dr keep insisting that if he do the pathologist report it will say the something as a benign, so now it’s growing again and by the time I see them again in Dec ,it could be bigger ,they gave me a bristles brush to remove the growth,as to see if that work. Wish it did ,now 2 months later it’s growing back again . Am getting overwhelmed, and worry that it may be cancerous again and the dr seems not speeding up things to fast ,as the way it happened 5 years ago . So a frustrated and overwhelmed. And loosing patience with my periodontist. Not sure what todo next ,but am very disappointed and sad at the same time .