Dark and rough elbows can turn ugly due to sheer negligence to such an extent that you might start avoiding clothes without sleeves. You might even try to conceal this rough patch through makeup, but that is never a permanent solution. If you have a fairer skin on the hands and rest of the body, dark and rough elbows are no less than dark spots. So, save yourself from further embarrassment and guilt using home remedies which are sure to give you result with consistent use, if not instantly. Here is one simple remedy using lemon, which acts as a natural bleaching agent. Spend 5 minutes everyday in taking care of your dark and rough elbows and knuckles and you will see the result in few weeks.
Caution: Please use Home Remedies after Proper Research and Guidance. You accept that you are following any advice at your own risk and will properly research or consult healthcare professional.