Yes, I currently have sciatica, and have had it about six months. Mine luckily is the chronic kind. I have begun treating it with shiatsu, and am going to try acupuncture soon. The shiatsu is great, I love it, and it relieves the symptoms really well. But it does not seem to get at the root cause.
If on the other hand, this is a really severe debilitating type, then a different approach is probably necessary. My husband had a debilitating episode about 10 years ago. He went on a very long program of physio and then took up Tai Chi. He was also on heavy-duty painkillers for several months.