Lidocaine doesn't work as anaesthetic for me! is there anything else?

Maybe.: Local anesthetics work by blocking sodium channels and impair a nerves ability to transmit signals ( so you feel numb). They all work the same, however sometimes patients feel one works better on them. This is a little hard to explain, but similar meds include bupivicaine and ropivicaine.

"Doesn't work"?: Hard to understand why Lidocaine "doesn't work" for you. Did you have it for a nerve block (dental, regional anesthesia, spinal, or epidural)? Did you use it on skin? Was it injected to numb an area for surgery or to drain an infection? In most of these scenarios, it is usually other factors that cause failure to archive numbness - not a resistance to lidocaine.