If the lacrimal duct injection is solid, it can be taken out through the incision of the lower eyelid eyelash margin under direct vision, which is very hidden and leaves almost no trace after operation. For liquid injection, if the level is particularly limited and a thin fluid with a fixed capsule is injected, sharp needle aspiration can be selected according to the requirements of patients.

Similar to the temporal region, the cheeks and nasolabial groove are also areas with dense nerves and blood vessels. If nerves and blood vessels are damaged in the process of removal, there will be hematoma, mouth watering and even never recovery. Theoretically, the injection and removal of this site is limited to the deep and shallow layers, and the middle layer with concentrated neurovascular is rarely treated, so preoperative evaluation is extremely important. The removal method varies from case to case. Intraoral and extraoral incisions can be selected for removal and irrigation, and puncture and aspiration can also be selected.