The following treatment measures can be taken for arm pain during breastfeeding: 1. The first step is to reduce the fatigue and use of the upper extremities. At this time, patients can use devices such as intimate parenting scarves to help hold the child or take a side lying position for breastfeeding. This is the time to make the upper limbs get sufficient rest.2. The painful area must be kept warm. Even during breastfeeding, the patient should adjust the room temperature and keep the shoulders and other parts of the upper limbs warm. If necessary, you can also do appropriate hot compresses, such as hot water bags for hot compresses. 3, patients can go to a regular Chinese hospital acupuncture and massage department to do acupuncture, massage, baking electricity, hot compresses, cupping and a series of physical therapy for this.