Seton stitch not working propery?

Hello everyone. I had a seton stitch placed in the spring time. It's still there, but I feel like it never works properly. There is some drainage that happens, but not enough. The fistula is still abscessing a little but and it's causing me a lot of pain. I've tried sitz baths and they do absolutely nothing besides relieve pain for 3 minutes. Any recommendations? It sucks.

He isn't being a help at all. He never calls me back and it's getting on my nerves. His assistant just keeps saying use the sitz bath.