Mouth ulcers occurring during breastfeeding can be handled by general treatment and medication. 1. General treatment: breastfeeding women suffering from mouth ulcers should pay attention to diet, eat more fresh vegetables and fruits, drink more water, replenish water. At the same time, rest more, avoid overwork, need to ensure enough sleep. 2. medication: because breastfeeding is a special period of time, the use of drugs need to pay more attention to, preferred topical medication, can be applied locally oral ulcers, ice boron powder and other drugs, can promote the healing of ulcers. Secondly, you can also use the rehabilitation of new liquid, to play the role of blood circulation, nourishing Yin muscle, can play a role in the treatment of ulcers. For breastfeeding women, the occurrence of mouth ulcers if you need to use drugs, you should go to a regular hospital, under the guidance of the doctor to use drugs.