Can SMP in the sideburns cause a small bald patch next day?

I had my scalp micropigmetation third and final session and I had some ink placed in my sideburns area as well just to thicken them up a little. I noticed next day that on my left sideburn there is a small bald patch now that was never there before. Its about half a cm in diameter. Could this be from the smp needle causing some sort of shedding reaction due to stress and or inflammation? And how long before the hair regrows. Thank you.