Numbing cream to reduce needle pain during skin cancer imaging

This trial is testing whether EMLA cream, a numbing cream containing two local anesthetics (lidocaine and prilocaine), can reduce pain when patients receive injections as part of a lymphoscintigraphy procedure — a type of imaging scan used to check for cancer spread in lymph nodes. Half of the participants will receive the actual numbing cream, and half will receive a placebo (fake) cream, so researchers can fairly compare how much pain relief the medication provides.

The injections used during lymphoscintigraphy can be uncomfortable and painful for patients. Researchers want to know if this medication can make the procedure easier to tolerate and improve the patient experience during cancer diagnosis and treatment.