After Moh's surgery for basal cell carcinoma, questions about pus, grafts. (Photo)

What you are describing sounds like nerve pain. As a nerve heals it can be itchy, painful, or can give occasional sharp bolts of pain. Numbness means nerve injury, which can occur to a small branch of nerve that runs through the forehead on the way to the scalp. Be patient, and discuss it with...

Without a photo this is very difficult to answer; however, you are likely correct in that a dissolving suture is the most likely culprit.  These are typically cream colored or clear...you can likely just pull it out but the safest answer would be to go have your surgeon evaluate it.

The redness will improve over time. The small puncture marks from the stitches are also normal and will fade with time.  Make sure to protect the wound from sun exposure and use sun screen.  This will help the scar as it heals.