Lanacane original cream is used for fast relief for itching and irritation of dry skin everyday cuts, scrapes and skin chafes external vaginal and anal itching heat rash and nettle stings nonpoisonous insect bites and stingsit contains an ingredient called benzocaine which is a local anaesthetic that numbs the area where it is applied.do not apply this cream to large areas of skin or to the eyes.speak to your doctor if your symptoms do not improve within one week or if they get worse during treatment with this medicine.