Evaluation of the Effectiveness of a Protocol for the Management of Female Functional Urinary Signs

Inclusion Criteria: * Female * Age ≥ 18 and \<65 years * Patient with less than 3 days of simple urinary tract infection symptoms: * Burning, pain on urination * Dysuria * Pollakiuria * Urinary urgency * Patient affiliated or beneficiary of a social insurance * Patient having signed an informed consent. Exclusion Criteria: * More than 3 cystitis in the last 12 months; * Last cystitis less than 15 days old; * Presence of fever; * Presence of back pain; * Presence of a functional or organic anomaly of the urinary tract (bladder residue, vesico-ureteral reflux, lithiasis, tumor); * Pruritus or vaginal discharge; * Vomiting, diarrhea, diffuse abdominal pain; * Risk factors for C3G-resistant enterobacteria infection (grade B): * Exposure to an antibiotic (amoxicillin-clavulanic acid, C2G, C3G, fluoroquinolones) within the previous 3 months; * A nosocomial or healthcare-associated infection; * A history of colonization or infection with C3G-resistant enterobacteria within the last 3 months; * A trip to a foreign country within the last 3 months in known geographical areas at risk (in particular the Indian subcontinent, South-East Asia, the Middle East and North Africa, the Mediterranean basin); * Hospitalization within 3 months; * Hospitalization within 6 months for UTI; * Known severe renal insufficiency (creatinine clearance \< 30 mL/min); * Severe immunosuppression or immunosuppressive treatments; * Contraindications to drugs planned for experimental management (pivmecillinam and fosfomycin) or combination of drugs not recommended; * Pregnant women (confirmed or suspected pregnancy), breastfeeding women or women in labour; * Person deprived of liberty by judicial or administrative decision; * Person under forced psychiatric care; * Person admitted to a health or social institution for purposes other than research; * Person subject to a legal protection measure; * A person who is unable to give consent.