Comma pit excision should be accompanied by precautions, which should include: 1, regular outpatient drug changes; 2, so that the operator or the operator’s designated personnel to remove the stitches; 3, within 3 weeks after surgery, pay attention to prevent the wound from widening treatment, you can use the drug change products we passed, such as transparent paste, generally 2 to 3 days to replace once. Do not use 3M tape, because: do not use 3M adhesive, the adhesive force is too strong, the process of changing pull open or widen the incision; tension, the incision of new epithelial keratinization is fast, the pile of keratin under the tension of the formation of downward extrusion force, and the new epithelium, subcutaneous granulation are not resistant to pressure, which caused the incision to heal wider and appear again depression, with 3M tape is the wrong method and concept. The use of 3M tape is the wrong method and concept. The use of our transparent stickers is the appropriate method, and the tension is more appropriate.