Anyone with neuropathy?

My sis has awful numb sensation in her middle toe now spreading to other toes. Ever have this? Also she can't put pressure on the foot because then there is searing pain. Also a squeezing pain. And the toes feel stiff..can barely bend them. She can't even walk now. All within a couple months. 🥺Her neurologist did an EMG that measures nerves and their function and it did show possible neuropathy. She has been diabetic 25 years with unstable sugars. But she did also hurt her back and he said it could partly be that too. If you had this and it WAS neuropathy... what treatment helped?