Can I develop skin ischemia or necrosis after a nasal abscess due to a pulled stitch six months ago?

Yes, you should definitely inform your surgeon about the pulled stitch, as well as the symptoms you're experiencing. Skin ischemia or necrosis can indeed occur after a nasal abscess, especially if there's compromised blood flow to the area. It's essential for your surgeon to have a complete understanding of your medical history and any potential complications that may affect your upcoming reconstructive surgery. Being transparent about your concerns allows your surgeon to provide you with the best possible care and ensure your safety during the procedure. Don't hesitate to discuss this with them, as it's crucial for your health and the success of your surgery.