Enjoy DRUG-FREE pain relief with the new VoxxLife Neuro Patch. This topical patch is primarily meant to be applied to the inside of the forearm. A process called somatosensory cortex imprinting takes place after it has been worn for a day. This means that the part of the brain that recognizes touch stimulation remembers the pattern. After wearing the patch on the forearm the first time (this is called primary activation), the somatosensory cortex remembers the pattern and will recognize it when the patch is applied again to another part of the body. The forearm is always the primary application point.