Evaluation in the Treatment of Neuropathic Pain Post Breast Surgery

Exclusion Criteria

• •Contraindications specific to the treatments studied : capsaicine and pregabalin
• •Diabetic patient
• •Previous treatment with capsaicin or pregabalin
• •Opioid treatment\> 80 mg / day (oral morphine equivalent) in progress- Topical treatment of pain between surgery and inclusion visit
• •Uncontrolled hypertension (systolic blood pressure ≥ 180 mmHg or diastolic blood pressure ≥ 90 mmHg) or recent history (\<3 months) of cardiovascular events (stroke, heart attack, pulmonary embolism)
• •Creatinine clearance (CLcr) \<60mL / min according to the Cockcroft-Gault formula
• •Pregnant woman, likely to be pregnant or breastfeeding
• •Persons deprived of their liberty or guardianship (including curators),
• •Impossibility of submitting to the medical follow-up of the test for geographical, social or psychological reasons