Does anyone suffer with sciatica?

Is so then does anyone have any tips that make it more bearable?! I’ve been referred for physio but because of Covid they aren’t holding appointments so in the mean time I’ve been put on painkillers that are fine day to day but when I go to work I’m in agony. When it kicks in I literally can’t walk it will bring me to My knees, I’ve got quite a high pain threshold but this pain is so bad it makes my feel sick. I’ve been back to drs but they can’t give me any other painkiller as they would make my drowsy and with work and driving they can’t prescribe me them.

I’m literally losing the will to live with this pain now so any advice would be greatly appreciated.

Ps I’ve tried home stretches for the past 6 month (still going) recommend by the dr and they don’t help at all 😔