How to use a xylocaine spray، xylocaine spray contains lidocaine, which is known as a local anesthetic and helps with temporary loss For sensation in the area to which the substance is applied, by inhibiting nerve endings and thus relieving pain and loss of sensation in the skin and mucous membranes. xylocaine spray is also used with skin infections to stop itching from cases of eczema, insect bites, minor burns, and itching around the anal or vaginal area. It is also used in some medical procedures.