I have chronic back pain and scitica caused by 2 large disc herniations at the L-4AND L5 -S1 discs comprimising the exting nerve roots i also have neuorpathy in both legs due from being a diabetic for these conditions i am currently on oxycontin 40mg3×aday&percocet 10/325 for break through pain up to 3 a day for the last year &1/2 that has been my daily regimn but now the oxycontin does not work as well as it did when i started on them the percocet does not either my question is should i just ask my pain dr to raise my dosage as it is not reliving pain like before. Any input would be apperciated, Thanks