Old man has sciatica

My Dad has had sciatia for 4 years, it wont go away for him, I told him it may be good to see how the kb’s could help.

He has been to see the doctor which as you know, doctor are pretty useless, I would rather come on here and ask you.

I told him not to do any type of dead’s with kb as this may irritate his back, his sciatica starts in his left side of his back, and runs down the left side of his leg. Hamstring stretches are making it worse. So I said maybe you could try swings, it may relieve it?

His has been to a physio but with no luck, plus it’s to much money.

I gave him my 16kg to work with, I said just do swing’s to loosen any thing up. I am right or wrong?