If the low-grade fever is caused by a broken lip, please see if your daughter's lips are swollen. It is likely to be inflammation caused by inadequate disinfection. Children have weak resistance. If you bite into your mouth, it is easy to get oral ulcers. In this case, more vitamin B2 powder should be used.

You should disinfect quickly, then take some antibiotics, drink more warm water, and don't eat spicy food and snacks.