Can Sciatica not stemming from spinal problems be cured/managed?

Hello, as a Sciatica sufferer who does not have any actual spinal problems other than pain, I was wondering if it’s possible to cure or manage it when it doesn’t really have a physical cause. I’m 16 and hypermobile, which I suspect is the cause of my sciatica, and so I can’t think of anything that could help? When I get flare ups it really makes it horrible to go about my day, and I don’t currently have any way of managing the pain, so if anyone in a similar situation has any tips/exercises they’d recommend that help with their pain, I’d appreciate it very much as it would make a world of difference to me. Thanks