How to Use: 1. Wash the area with soap and hot water. 2. Cover the skin with a towel (40C ~ 50C) and hold for 5 minutes to increase the skin temperature and open the pores, which will help the anesthetic penetrate the skin quickly. 3. Spread a small amount of cream onto the skin and rub it in gently with your hands so that the cream and skin stick together completely. Then apply a second layer of cream to the skin (keep 1/8 inch or 2 coins thick). 4. Cover cream with plastic wrap to keep cream temperature compatible with skin temperature. 5. When time reaches50-70 minutes, remove the plastic wrap and wipe off the cream, then start working (Usually numbs the skin for 3-5 hours. 6.100% genuine