Local anesthetic creams usually include amide local anesthetics (lidocaine, etc.), ester local anesthetics (procaine, etc.) and so on. 1. Amide local anesthetics: generally belong to the medium-acting anesthetics, fast effect, strong penetration, wider diffusion range, this anesthetic ointment is highly effective, mainly used for local administration of anesthesia, blocking the sensory nerve impulses, to achieve the effect of anesthesia. Mainly including lidocaine, bupivacaine, eticaine and other local anesthetic cream. 2. Ester local anesthetics: its anesthetic cream diffusion force is poor, penetration ability is weak, used for surface anesthesia, anesthesia efficacy is low, so that the nerve sensitivity is reduced, so as to achieve the effect of pain relief, local anesthesia. There are mainly bupivacaine, procaine, chloroprocaine and other local anesthetic creams. The above anesthetic creams need to be used under the professional guidance of a doctor to avoid bringing discomfort to the body.