Pimple like growth on healing mole excision wound - 6 weeks post-op. (Photos)

I had a mole excision done on a small mole on my nose about 6 weeks ago. A pimple like growth started appearing as seen in the pictures about 3 weeks ago. It has a hard feeling to it at times but after showers it is pretty soft. I have tried to lightly pick at it with my finger nails to see if it will budge but it seems stuck on my skin. What could this possibly be?