Inclusion Criteria:  Provision of signed and dated informed consent form. Stated willingness to comply with all study procedures and availability for the duration of the study. Female, age 18 or older. Scheduled for axillary surgery (sentinel node biopsy or axillary dissection), with or without concurrent lumpectomy. Able to take oral narcotics and be willing to adhere to the prescribed regimen.  Exclusion Criteria:  A history of chronic pain Any previously diagnosed chronic pain syndrome. Prior use of narcotics, on more than 5 days in the past 3 months or 10 days in the past year.