Tenosynovitis during breastfeeding can usually be plastered with ointment, which should be done under the guidance of a doctor. Tendovaginitis is an acute and chronic inflammation that occurs in the tendon sheath, and its etiology is related to chronic strain, trauma, infection, breastfeeding and other factors. Patients may experience symptoms such as localized pain, pressure pain, and limitation of movement of the affected joints. If patients experience symptoms of localized pain, they can choose non-steroidal anti-inflammatory drugs, such as Futenugreek ointment and indomethacin babu cream, in combination with their own conditions. Although such drugs have no obvious contraindications for breastfeeding, it is necessary to ask for a doctor’s guidance before using them, and do not use them without authorization in order to avoid damaging your health. Once the diagnosis of tenosynovitis is confirmed, patients need to take relevant treatment measures under the guidance of the doctor. In daily life, avoid carrying heavy objects for a long time, repetitive activities of the elbow joint, and maintain sufficient rest.