I have now received my:

R-Lipoic Acid 100mg
Benfotiamine 150mg
Jarrow B Right
Acetyl-L-Carnitine 250mg
Methyl B12 5000mcg

I would appreciate any help on what dosage to take and whether it should be on an empty stomach or with food as some of them say either but I want to get the best out of them that I can.

I had been diagnosed with PN from an EMG test but no idea what caused it and just have sunburn type pain on legs but loss of sensation on legs/feet/up to waist but no pain thank goodness.

I really hope the above will repair some of the damage and would appreciate hearing the best way to take them to maximise the results.

Thanks in advance.

I will put my suggestions in red in this quote:

Thank you for the information Mrs. D. I took 300mg of Benfotiamine this morning (I had only been taking 150g) and within 5 minutes my face was burning and bright red, I can only assume it was that as yesterday I just took the smaller dose of all the supplements and was fine and that is the only thing I did differently. Hopefully it will go away soon and I think I will take them as two x 150mg rather than 300mg all in one go in the future.

You can take 150mg of benfotiamine and not increase it.
The websites about it suggest 600mg a day, and one person came on here once who used 1,200mg.
Because this form is not so quickly excreted, I never recommend more than 300mg and that is only to get you started.

No one here has ever had a side effect from it like that.

It is possible you don't need a high amount or any for that matter, and the thiamine in the B-right might be enough for you.

So one thing you can do is drop it entirely for now, and reintroduce it in a week. See if you get any flushing with 150mg.

The flushing side effect is most common with niacin. There is 25mg of Niacin and 25mg of non flush niacin in that B-right.
Most people will not flush at 25mg but it is possible.
http://www.jarrow.com/product/57/B-Right

If you think the flush is from the B-right, try it every other day instead of daily.

Thank you, I will maybe drop the B Right tomorrow and see if I still get the flush with 150mg of Benfotiamine. I took 150mg of it yesterday and the B Right with no problems which is why I thought maybe it was 300mg of Benfotiamine that did it today. It lasted about 45 minutes and was quite unpleasant.

That sounds like a niacin flush.... B-right has a good mixture of items and doses. Not very many people flush on 25mg of niacin but some do. I think it is about the best B complex on the market...not too strong and not too weak.

The niacin flush can be blocked with an aspirin taken 1/2 to 3/4 of a hour before the niacin.

But juggling your times or dropping one or the other may help.
Benfotiamine is not linking to flushing and I have read many papers on it. Also if the niacin is the culprit, most people do develop a tolerance to that side effect.