Complex and Simple Appendicitis: REstrictive or Liberal Post-operative Antibiotic eXposure (CASA RELAX)

Inclusion Criteria: * Age ≥ 18 years * Planned appendectomy (laparoscopic or open) * Willing and able to provide informed consent * Working telephone number or reliable method to contact patient after hospital discharge Exclusion Criteria: * Unable to consent * Pregnant Women * Prisoners * Immunocompromised as determined by clinical team, or patients actively receiving steroids, chemotherapy, or immunosuppressing medications (for example tacrolimus), or patients with active hematologic malignancy affecting the immune system, leukopenia, or end-stage AIDS * Heart failure * Allergy to bupivacaine * Unlikely to comply with treatment or follow-up * Inpatient consultation for appendicitis * Clinically suspected of sepsis based on Sepsis-3 definition * Current use of antibiotics for other indications * Type 1 Diabetes or uncontrolled hyperglycemia * Surgeon preference * Patient preference * Research team unavailable