Quinn's took almost 4 weeks. I had to bring her in twice to have it treated with silver nitrite at the pediatrician office. I did everything I was supposed to do, as well. I kept it dry, cleaned it thoroughly with alcohol, avoided getting it wet during her baths. It was a pain. I was so glad when it finally fell off at 4 weeks. Call Kai's ped to see if they want to treat it with silver nitrite. It doesn't hurt, but don't put any nice outfits on Kai when you take him because the silver nitrite will stain his clothes permanently. Make sure you keep him in a onesie that's not "special" for at least a few hours after his silver nitrite treatment.