Gum swelling and pain during lactation is mostly caused by inflammatory stimulation or dental caries, you can use saline, hydrogen peroxide solution, compound borax solution rinsing and gargling. 1. Saline: When the gums are swollen and painful during breastfeeding, you can gargle and rinse with light salt water every morning and evening, which can help pregnant women temporarily relieve the pain and play an anti-inflammatory role. 2. Hydrogen peroxide solution: If you have hydrogen peroxide solution at home, you can directly use hydrogen peroxide solution to rinse the swollen gums during breastfeeding, which has a better disinfecting and sterilizing effect, but you need to dilute the hydrogen peroxide solution. 3. Compound borax solution: nursing gums can also be used to rinse the mouth with compound borax solution, which has a disinfectant, anti-corrosive effect, after using the same can relieve the pain. It is recommended that patients with breastfeeding gums first go to a regular hospital, the specific medication needs to be guided by the doctor.