A 2016 Cochrane meta-analysis found that both lignocaine and cocaine sprays were effective in reducing pain compared to a placebo when administered prior to colposcopy treatment for cervical intraepithelial neoplasia. A total of 19 randomized controlled trials (RCTs; N= 1720 women) were included for analysis. One study compared the use of 40 mg 10% lignocaine spray alone versus 1.8 ml of 2% lignocaine plus 1:100,000 adrenaline injection for pain relief during gynecological procedures. Pain scores during the procedure were reported as medians on a 10 cm visual analog scale (VAS), with the median score being 3.0 (interquartile range [IQR] 0.0 to 9.5) for the lignocaine spray group and 4.0 (IQR 0.0 to 8.2) for the lignocaine plus adrenaline injection group (p= 0.11). Thirty minutes after the procedure, the median pain scores were 2.6 (IQR 0.0 to 7.8) for the spray group and 1.9 (IQR 0.0 to 8.5) for the injection group (p= 0.84). However, the pain scores during the application of the spray versus injection were significantly different, with a median of 0.0 (IQR 25.7 to 3.0) for the spray and 1.9 (IQR 23.5 to 7.6) for the injection (p<0.01). Another study compared 0.5 ml of 10% lignocaine spray plus standard cervical infiltration versus placebo. The results showed no significant effect of the lignocaine spray on pain scores, with a median VAS of 40.0 (IQR 21.25 to 63.25) for the spray group and 36.0 (IQR 17.5 to 49.5) for the placebo group (p= 0.38). Cocaine spray was associated with significantly less reported pain on a visual analog scale compared to placebo, with a mean difference of 28 (95% confidence interval [CI] -37.86 to -18.14; 50 women). The cocaine spray also resulted in less measured blood loss during the procedure. Overall, the findings indicate that brief administration of topical anesthetics like lignocaine and cocaine sprays can help minimize the discomfort experienced by patients undergoing colposcopy procedures to treat precancerous lesions of the cervix. [1]
A 2024 scoping review investigated different techniques for reducing pain during intrauterine device (IUD) insertion, which includes lidocaine cervical spray. A total of 19 studies that described pain management protocols for pain amelioration were included, with 12 evaluating pharmacologic management. Lidocaine cervical spray and cervical spray were assessed in 2 individual trials. In the first study, a 10% lidocaine spray was reported to be successful in decreasing pain with IUD insertion compared to placebo among 200 patients. However, the second study of 420 patients dividing lidocaine spray, gel, and placebo into groups of 140 found no significant benefit with the lidocaine spray or gel versus placebo. Further analysis regarding the spray is limited, and the authors’ general conclusions were that more research was needed to develop and refine a standardized pain protocol management. [2]
A 2003 review described the management of Bartholin’s Duct cyst and gland abscess in women of reproductive age. In cases where treatment is required (e.g., symptomatic Bartholin’s duct cysts), incision and drainage may be necessary, preceded by preparation and administration of a local anesthetic, such as lidocaine 1% or 2% solution. [3]