Itchy and hard sebum balls(white grainy substance) 2 Months after FUE. What can I do to prevent this? (photos)

It is best to contact your surgeon for post surgery issues and care since all doctors have slightly different instructions.

You may be experiencing the loss of the hair shafts from transplanted hair grafts. That usually is completed within the first month but at times and when the patients don't wash their hair aggressively enough, it may continue a few months after the procedure.  It is a good idea to see your hair transplant surgeon for a quick evaluation. 

That is a late shock loss..Transplanted graft’s hair starts to shedding in the first week of surgery and may go on untill 4-6 th weeks after surgery. İt is not surprising to lost approx. % 70-80 of all transplanted hair shafts in first month when you are washing, gently rubbing  or touching the head. İt is shock loss and not permanent. Even your native hair may affected with that post traumatic transient hair loss…New hair at transplant and donor area starts to grow at 3-4 th month after surgery .

What you may be seeing is late shedding of the original hair transplant grafts from the recipient area