Until it's all metabolized, it's all over your body, in your blood, visiting your brain, etc (3). And, of course, because it's in your blood, it's therefore in your lungs. This is the cause of the alcohol breath that most people refer to. In simple terms, it's in the process of being processed alcohol, and it has a distinct, somewhat sweet, odor.
Genicular Nerve Block. This outpatient procedure is an injection of anesthetic to the genicular nerves. These are the sensory nerves that transmit pain signals from the knee to the brain. Anesthetizing these nerves can disrupt the pain signals caused by degeneration of the knee. A genicular nerve block can provide temporary pain relief.
Also, (from UW Health site)The purpose of the nerve block is to find out if your sympathetic nerves are causing your pain. A stellate ganglion block is a test to diagnose and treat sympathetic dependent pain in your hand, arm or shoulder. The pain may come from the nerves in your neck near the spine. These nerves control sweating, heart rate, blood vessels, pupil dilatation, movement of food through the intestines, and many other body functions. Sometimes these nerves do not work right and cause pain. It can be on either side of your body.