Secondary analyses will include subset analysis, comparison of the double-active treatment group against the others (placebo and the single-treatment groups) on percent change of mean "Tampon test" as well as standardized pain measures such as the Brief Pain Inventory and the McGill Pain Questionnaire. This is to explore if the active desipramine/active lidocaine treatment has more advantages that may not be shown in the ANCOVA model. The secondary analysis is to explore supportive evidence to the primary objective of this trial, and no confirmatory conclusions are needed. In the secondary analysis, confidence intervals and statistical tests are of exploratory nature and no claims are intended.