Is acupuncture a treatment for sciatica?

what other treatments or exercise can improve this condition

Yes it can be used, although I didnt find it an awful lot of help. What really helped me was a 6 week course at a rehabilitation gym. If you have a "rehabworks" near you its worth looking into;

Yes it is I'm a nurse.
This is going to sound very cliche but I use to have terrible sciatica pain and the best thing is not to do too much walking when it flairs up and do yoga. The different poses and the stretching works wonders. I have not had a sciatic pain in years.
I doubt it would relieve the physical pressure on the nerve that is causing the pain, but, as a sufferer of cluster headaches, the only thing that brought me permanent relief was a course of acupuncture. This was after suffering for probably 20 years. As with sciatica, the physical cause isn't removed, but the worst part of the pain has never re-appeared after many years.
To me it was fabulous. But they were little gold taps and they left them on my back in three different places and hold them with a piece of quirurgical tape for like a week.
Maybe but doesn.t get at the cause. I am 67 and have had low back problems since I have been 16, I have tried just about everything.. Recently I discovered something that really seems to work well. It's a little difficult to do but the result is similar to what a chiropractor does for you. Lay on your left side at the very left most edge of the bed. Your left leg should be stretched out as straight as it will go. Now put your right leg straight up reaching for the ceiling and slowly lower it to the floor so that your outstretched right leg is perpendicular to the rest of your body which should be in a straight line with the edge of the bed.. The idea here is to stretch your low back muscles. Once your practice this for a while you will want to try to position your shoulder more flat with the bed which puts more of a twist on your entire spine. Go slow at first and don't do anything fast or jerky.

Of course you can do the other side too.
Me