Evaluation of the Efficacy of Therapeutic Infiltrations of the Pudendal Nerve, Performed Under Neurostimulation on Pain, 1 Month After an Infiltration of Local Anaesthetic, in the Treatment of Pudendal Neuralgia.

Inclusion Criteria: * Patient 18 years of age or older, * Expressed consent to participate in the study * Affiliated or beneficiary of a social security plan * With pudendal neuralgia (Nantes criteria "modified" Nantes criteria). * MRI normal or without pathology explaining the pain * Drug treatment failure as defined in the LOS, i.e., failure (VAS decrease \< 3) of at least one antiepileptic drug and an antidepressant whose dosages have been to the maximum possible dosage, or in whom a side effect for whom a side effect could not allow the dose to be increased to its to its maximum allowed dose. Exclusion Criteria: * Patient benefiting from a legal protection measure * Pregnant or breastfeeding woman * General and/or local infection (fistulous or cutaneous suppuration of the anal margin) in progress * Known neurological pathology that may explain the pain * Psychiatric pathology requiring a drug treatment treatment * Anticoagulants or haemostasis disorders * Hypersensitivity to lidocaine hydrochloride, to local anesthetics * Recurrent porphyrias