Regardless of the severity lifestyle modification including low fat diet, weigh loss, exercise, Alcohol cessation, tobacco- cessation, optimization medical management for conditions resulted in elevated triglyceride (such as diabetes, hypothyroidism, etc) and cessation of medications that cause elevated triglyceride.
Medical management may be indicated in high risk patients and/ or severely elevated triglyceride.
Key components of the management of diabetic neuropathy include:
-Tight diabetic control to prevent further damage
-pain/ symptomatic management which I suggest you have further discussion with your mother primary physician regard to prognosis, treatment goal, options and potential side effects from the treatment
I recommend to have further discussion with your mother's physician in regard to her current diabetes control conditions, treatment options and potential side-effects and how to monitor them