If you have pulpitis during breastfeeding, you can go to the stomatology department to kill the nerves of the teeth. In the process of treating pulpitis, you need to take an X-ray of the oral cavity, which has a very small dose of radiation, and the radiation will not be directly exposed to the child, and will not directly affect the quality of breastmilk. Therefore, X-ray filming does not affect normal breastfeeding, and the local injection of anesthesia in the oral cavity also does not affect, because it is local anesthesia, so the dose of anesthesia into the blood is very small. The anesthetic that is secreted through breast milk and then absorbed by the child is negligible. If you are not sure about it, you can of course use a breast pump to express the first milk and not feed it to the child. In addition, root canal treatment usually does not require oral antibiotics, so there is no need to worry about the effect of antibiotics on breast milk.