My transplanted area started to itch, to ease it I do circular gentle massages, lately I have noticed little hard balls that when massaged they seem to pop-out(1 - 3 per day). They feel like sebum balls (white grainy substance). I am worried that this will prevent my new hair to grow.Today in one of those tiny ball (1/3 off a grain of rice) there was a black hair (see photos) I could not see if there was a bulb too in there. What can I do to prevent this? Should I stop massaging my hair?