Inclusion Criteria:  Male or female who had first breast cancer surgery, regardless of the type of surgery Age ≥ 18 years Patients with refractory pain with myofascial syndrome, with a numerical scale ≥ 4 Topical treatment for refractory pain completed more than 30 days ago Healthy, non-irritated skin on painful areas to treat Patient with a third party who can attend visits M0 and M2.5 Obtaining the signed written consent of the patient Major patient affiliated to a social security scheme  Exclusion Criteria:  Patient who has used TENS before on the muscles affected by the myofascial syndrome Post-surgery management of the affected area by a physiotherapist Person with venous thrombosis Contraindications specific to the treatments studied