Some states have a longer statute of limitations. In that case, you should keep your tax records for as long as the statute of limitations is still open for a particular tax return. The statute of limitations gives the IRS three years to audit your tax return.
Lidocaine, also known as xylocaine and lignocaine, is a medication used to numb tissue in a specific area and to treat ventricular tachycardia. It can also be used for nerve blocks.
1 Lidocaine is mostly used to numb pain. It is in a class of medicines called local anaesthetics.  In general this drug is used to relieve pain from minor ailments. It is applied externally to the painful area. Also, it may be injected as a local anaesthetic in small operations and procedures.