Cranial repair surgery 4 days edema, if the scalp is mild edema, temporary observation can be, without special treatment, if the infection is caused by the need for reasonable medication. 1. Normal reaction: cranial bone repair surgery, short-term mild scalp edema, most of the normal reaction, can not do special treatment, but to be regularly observed to understand the degree of edema. 2. Postoperative infection: If the local care is not done after the operation, causing secondary infection and edema, reasonable medication is needed. For bacterial infection, oral cephalosporin antibiotics, such as cefaclor, cefixime. If the postoperative infection is caused by fungus, you can take oral fluconazole, amphotericin B and other drugs. Scalp edema after cranial repair, it is recommended to consult a doctor in a timely manner, and under the guidance of a professional physician reasonable use of medication.