Have you been to physical therapy?
I was diagnosed with TCs in the sacrum but doctors just don't know anything about them. There are only two surgeons in the US that do surgery on them and its not guaranteed.
Word needs to be put out about Tarlov cysts so more can be researched about them. Its ridiculous that only two doctors treat them.
PT helped with my L4-5 herniated lumbar disc sciatica pain as a matter of fact it got rid of the sciatica. Stretching was the key.

The TCs are another deal..
BUT Ive used TENS in the past that helped with the pain. My pain comes and goes. Im more worried about the bowel and pelvic issues that come with a growing cyst.
I am trying PEMF particularly the OSKA pulse. No this is not a paid advertisement. I saw it on a local news show and immediately ordered it in a desperate attempt to quell my pain. It works. It works for my herniated disc pain and the TC pain. Its not a cure-all but helps with pain.

God bless.