There are multiple choices that you can make with your MD to treat these "grains."

I am sorry to learn of the difficulty you are experiencing.  If these are effects of Sculptra speak to your physician as there are  procedures that can be performed to make you feel more comfortable.  Direct massage  of the area can have limited  success but  the sooner it is initiated after the injection the better the chance of success.  Injection of Saline by a qualified physician can have the ability to  break up granules.  "Needling" the granules can break them up as well.  Other fillers like Restylane can be used around the granules to camouflage them.   Depending upon size the granules can be surgically excised.  Lastly I would not use a blepharoplasty  alone as a method to remove these grains.