Is my Mohs wound healing properly or should I be concerned? How much longer can it take to fully heal? (photo)

Three months ago I had Mohs surgery for SCC. They "bored out" a 3/8" diameter hole, and since it was on the top of my head they said it would have to heal naturally as the skin was too tight to suture. They also said it would take 4-6 weeks to heal. The wound began filling and almost reached the surface within 4 weeks and was red on top. I kept applying Aquaphor ointment as directed with a bandage daily. However, no change has occurred for two months now. Been 13 weeks. Any suggestions?