my father is a diabetes patient since 10-12 years.he is taking medicine on regular basis.sugar level 120mg fasting and 160-180mg post.I have checked one year before but no problem found (lungs,liver,heart,kidney) but found some access amount of urea, cholesterol.
Now my question is
1) Is there any problem in heart, kidney & lungs if sugar varies 130-170mg post(2hrs after having food)?
2)What would be the medicine for Nerve pain(lower portion of foot, whist ) but he is taking methylcobalamin 1500mcg OD with vitamin.
3)Any precaution required for him